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Final Fantasy X Equipment Selling Guide
Version 1.3 03/08/02
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By the PlayOnline.com Message Board at www.playonline.com (Squall6Cloud, 
Rising2Fenix, Sir_Zombie, 
Serika, Llew42, Evandownie, among others)
Submitted by Rising2Fenix (Rising2Fenix@aol.com)
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Copyright: Under the United States and International copyright laws, this 
FAQ has been copyrighted to myself, Rising2Fenix and it's contributors.  Any 
act attempting to plagerize this work or display it without granted 
permission will result in legal action.  If you do wish to display this guide 
on your own FAQ site, contact me first.  Once permission is granted, it may 
only be allowed for personal use and should not be sold or redistributed.  
Take note, I am constantly looking around at FAQ sites throughout the web, 
so be forewarned.  I better not find this FAQ on a site I haven't approved 
it for.
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Table of Contents:
I.     Introduction/Version History
II.    Auto-Abilities and Selling Prices for Equipment
 1. Auto-Abilities for weapons
 2. Auto-Abilities for armor
III.   Items used for Customizing and sources to find them
IV.    Fast and easy gil tricks
1.	Method 1: Mimics in the Omega Ruins
 2. Method 2: "Golden-One-Eye"
 3. Method 3: Regen-erate your profits
   3a. What to do with weak characters
   3b. What to do with spare weapons
V.     Frequently asked Questions
VI.    Special Thanks and closing

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I. Introduction
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This history of this guide is actually an interesting one.  It started as 
a post on the PlayOnline Message Board, yet with the help of several experts 
on the site, it grew to be a very helpful guide.  It started by people looking 
for ways to make quick gil in the game, which got many of us thinking about 
how the sell prices of equipment were determined.  After a bit of math magic, 
we were able to punch out a few formulas.  So, using the info in this guide, 
it's possible to become relatively rich as sas you reach Guadosalam.

1.3: 03/08/02: Decided to change the format of the guide.  Added Monster Arena 
Requirements for unlocking Creations.

1.2: 03/08/02: Sent this guide to Neoseeker.

1.1: 03/07/02: Proofread this thing several times, fixed some mistakes and 
made a few things I said easier to understand.

1.0: 03/06/02: Placed Auto-Abilities List, Selling prices, and Gil tricks 
all into one file.

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II.  Selling equipments with Auto-Abilities
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"My math teacher was right!! You DO need math to survive!!!" - Feonor of the 
PlayOnline Message Board.

This took a bit of thinking, but we managed to uncover the means in which 
the game determines the selling price of equipment.  It all has to due with 
averages.  Combine the value of each attribute and of each empty slot, throw 
in certain preset values... Well, I'll let Squall6Cloud explain it.  He's 
the one who did all the number crunching and cranked out the formulas.

By Squall6Cloud of the PlayOnline Message Board:
-----------------------------------
"Customized Weapon or armor pricing  
-----------------------------------  
Definitions  
-----------  
Ability Price = (Price of 1-slot weapon or armor with that ability) - 12  
Weamor= To simplify things I will call (Weapon or armor) Weamor from now on.  
 
Basic Stuff  
-------------------  
Price of Weamor with 1 Slot and 1 ability = Ability price + 12  
Price of Weamor with 2 Slot and 1 ability= (Ability price x 1.5) + 18  
Price of Weamor with 3 Slot and 1 ability= (Ability price x 4.5) + 56  
Price of Weamor with 4 Slot and 1 ability= (Ability price x 15) + 187  
 
Now for the interesting stuff:  
 
You have 4-slot weamor with:  
 
- 2 abilities:  
 
Price of Weamor with 4 Slot and 2 abilities= ((Sum of ability prices on Weamor 
* 15) + 187)/2  
 
- 3 abilities:  
 
Price of Weamor with 4 Slot and 3 abilities= ((Sum of ability prices on Weamor 
* 15) + 187)/3  
 
- 4 abilities:  
 
Price of Weamor with 4 Slot and 4 abilities= ((Sum of ability prices on Weamor 
* 15) + 187)/3  
 
Calculating price of a 3-slot Weamor  
 
- 2 abilities:  
 
Price of Weamor with 3 Slot and 2 abilities= ((Sum of ability prices on Weamor 
* 4.5) + 56)/1.5  
 
- 3 abilities:  
 
Price of Weamor with 3 Slot and 3 abilities= ((Sum of ability prices on Weamor 
* 4.5) + 56)/1.5  
 
And for the 2-slot 2 ability formula is:  
 
Price of Weamor with 2 Slot and 2 abilities= (Sum of ability prices on 
Weamor*1.5) + 18"
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If the stuff above was too much for some of you, to simplify it all:
X = Ability Price
S = Number of Slots
A = Number of Abilities

1S/1A = x+12  
2S/2A = 1.5x+18  
2S/2A = 1.5x +18  
3S/1A = 4.5x+56  
3S/2A = (4.5x+56 )/1.5  
3S/3A = (4.5x+56)/1.5  
4S/1A = 15x+187  
4S/2A = (15x+187)/2  
4S/3A = (15x+187)/3  
4S/4A = (15x+187)/3

Use Squall6Cloud's formulas and substitute X for the value corresponding with 
each Auto-Ability.  If you have more than ONE ability, ADD them together as 
the value for X.

-------------------------------
IIa. Auto-Abilities for Weapons
-------------------------------
50-----Sensor: Ability Sphere x2
0------Piercing: Level 2 Key Sphere x1
1500---First Strike: Return Sphere x1
1500---Initiative: Chocobo Feather x6
175----Firestrike: Bomb Fragment x4
175----Thunderstrike: Electro Marble x4
175----Waterstrike: Fish Scale x4
175----Icestrike: Antarctic Wind x 4
500----Darktouch: Eyedrops x60
1000---Darkstrike: Smoke Bomb x20
750----Silencetouch: Echo Screen x60
2000---Silencestrike: Silence Grenade x20
250----Sleeptouch: Sleeping Powder x10
2000---Sleepstrike: Dream Powder x16
375----Poisontouch: Antidote x99
2500---Poisonstrike: Poison Fang x24
1250---Stonetouch: Petrify Grenade x10
3000---Stonestrike: Petrify Grenade x60
2000---Deathtouch: Farplane Shadow x30
5000---Deathstrike: Farplane Wind x60
2000---Zombietouch: Holy Water x70
3000---Zombiestrike: Candle of Life x30
750----Slowtouch: Silver Hourglass x16
2000---Slowstrike: Gold Hourglass x30
25-----Str +3%: Power Sphere x3
125----Str +5%: Stamina Spring x2
1250---Str +10%: Skill Sphere x1
2500---Str +20%: Supreme Gem x4
25-----Magic +3%: Mana Sphere x3
125----Magic +5%: Mana Spring x2
1250---Magic +10%: Black Magic Sphere x1
2500---Magic +20%: Supreme Gem x4
1000---Counterattack: Friend Sphere x1
5500---Evade & Counter: Teleport Sphere x1
6250---Magic Counter: Shining Gem x16
4250---Magic Booster: Turbo Ether x30
2000---Alchemy: Healing Water x4
5000---Half MP Cost: Twin Stars x20
7500---One MP Cost: Three Stars x20
10000--Double AP: Megalixir x20
15000--Triple AP: Wings to Discovery x50
6250---Overdrive -> AP: Doors to Tomorrow x10
5000---SOS Overdrive: Gambler's Spirit x20
7500---Double Overdrive: Underdog's Secret x30
10000--Triple Overdrive: Winning Formula x30
0------Gillionaire: Designer Wallet x30
0------Break Damage Limit: Dark Matter x60
1500---Capture: Can only be bought at Monster Arena
1625---No Encounters: Purifying Salt x30
------------------------------
IIb. Auto-Abilities for Armor
------------------------------
375----Fire Ward: Bomb Fragment x4
750----Fireproof: Bomb Core x8
2500---Fire Eater: Fire Gem x20
375----Lightning Ward: Electro Marble x4
750----Lightningproof: Lightning Marble x8
2500---Lightning Eater: Lightning Gem x20
375----Water Ward: Fish Scale x4
750----Waterproof: Dragon Scale x8
2500---Water Eater: Water Gem x20
375----Ice Ward: Antarctic Wind x4
750----Iceproof: Arctic Wind x8
2500---Ice Eater: Ice Gem x20
125----Dark Ward: Eyedrops x40
500----Darkproof: Smoke Bomb x20
125----Silence Ward: Echo Screen x30
500----Silenceproof: Silent Grenade x10
50-----Sleep Ward: Sleeping Powder x6
200----Sleepproof: Dream Powder x8
100----Poison Ward: Antidote x40
375----Poisonproof: Poison Fang x12
300----Stone Ward: Soft x30
625----Stoneproof: Petrify Grenade x20
500----Death Ward: Farplane Shadow x15
1000---Deathproof: Farplane Wind x60
500----Zombie Ward: Holy Water x30
1000---Zombieproof: Candle of Life x10
250----Slow Ward: Silver Hourglass x10
750----Slowproof: Gold Hourglass x20
250----Confuse Ward: Musk x16
1000---Confuseproof: Musk x48
250----Berserk Ward: Hypello Potion x8
1000---Berserkproof: Hypello Potion x32
2000---Curseproof: Tetra Elemental x12
125----SOS NulBlaze: Bomb Core x1
125----SOS NulShock: Lightning Marble x1
125----SOS NulTide: Dragon Scale x1
125----SOS NulFrost: Arctic Wind x1
1000---SOS Shell: Lunar Curtain x8
1000---SOS Protect: Light Curtain x8
750----SOS Reflect: Star Curtain x8
5000---SOS Haste: Chocobo Feather x20
5000---SOS Regen: Healing Spring x12
5500---Auto Shell: Lunar Curtain x80
5500---Auto Protect: Light Curtain x80
3500---Auto Reflect: Star Curtain x40
12500--Auto Haste: Chocobo Wing x80
15000--Auto Regen: Healing Spring x80
50-----Defense +3%: Power Sphere x3
125----Defense +5%: Stamina Spring x2
1250---Defense +10%: Special Sphere x1
2500---Defense +20%: Blessed Gem x4
50-----Magic Defense +3%: Mana Sphere x3
125----Magic Defense +5%: Mana Spring x2
1250---Magic Defense +10%: White Magic Sphere x1
2500---Magic Defense +20%: Blessed Gem x4
25-----HP +5%: X-Potion x5
250----HP +10%: Soul Spring x3
1500---HP +20%: Elixir x5
3750---HP +30%: Stamina Tonic x1
300----MP +5%: Ether x5
1500---MP +10%: Soul Spring x3
2000---MP +20%: Elixir x5
4500---MP +30%: Mana Tonic x1
3000---Auto Potion: Stamina Tablet x4
2500---Auto Med: Remedy x20
5000---Auto Phoenix: Mega Phoenix x20
10000--Pickpocket: Amulet x30
15000--Master Thief: Pendulum x30
1500---HP Stroll: Stamina Tablet x2
1500---MP Stroll: Mana Tablet x2
1625---No Encounters: Purifying Salt x30
0------Break HP Limit: Wings to Discovery x30
0------Break MP Limit: Three Stars x30

Now for actual customizing:

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III. Items used in Customizing:
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In high demand from gamers, they want to know where they can get items to 
customize certain abilities.  So here it is.  The information used in this 
portion was compiled from CB!'s FAQs with her permission along with some of 
my own research.  Special thanks to CB! for her amazing guides:
(http://home.san.rr.com/circe/final_fantasy_x_equipment_remodeling.txt)(
http://home.san.rr.com/circe/final_fantasy_x_monster_arena.txt)
(http://home.san.rr.com/circe/final_fantasy_x_steal_a.txt)
(http://home.san.rr.com/circe/final_fantasy_x_bribe.txt)

Name of item used to customize
   Drop: Item won after being victorious in battle
   Steal: Items stolen from fiends during battle
   Bribe: Items awarded from fiends using Bribe from Rikku's Grid
   Unlock: Items awarded in Capture quests in the Monster Arena
   Other: Sources other than already noted above


Amulet
   Drop: Stratavis - x2 (common), x4 (overkill)
   Bribe: Tonberry - Amulet x2 for 270,000 gil

Antarctic Wind
   Steal: Snow Flan - Antarctic Wind x2 (common)
      White Element - Antarctic Wind x1 (common) x2 (rare)

Antidote
   Steal: Bite Bug - Antidote x1 (common)
      Grat - Antidote x4 (common)
      Killer Bee - Antidote x1 (common)
      Ragora - Antidote x1 (common)

Artic Wind
   Steal: Chimera A - Arctic Wind x3 (common)
      Chimera B - Arctic Wind x3 (common)
      Ice Flan - Arctic Wind x1 (common) x2 (rare)
      Snow Flan - Arctic Wind x2 (rare)
   Bribe: White Element - Arctic Wind x7 for 7,800 (BEST DEAL)
      Snow Flan - Arctic Wind x10 for 12,000 gil

Blessed Gem
   Drop: Cactuar King Blessed Gem x3 (common) x6 (Overkill)
   Steal: Barbatos - Blessed Gem x1 (rare)
      Coeurl Regina - Blessed Gem x1 (rare)
      One-Eye - Blessed Gem x1 (rare)

Black Magic Sphere
   Dropped: Evrae
      Evrae Altana
      Seymour
   Bribe: Black Element - Black Magic Sphere x2 for 152,000 gil

Bomb Core
   Steal: Bomb B - Bomb Core x2 (common) x3 (rare)
   Bribe: Bomb A - Bomb Core x16 for 17,000 gil (BEST DEAL)
      Red Element - Bomb Core x8 for 9,000 gil

Bomb Fragment
   Steal: Bomb A - Bomb Fragment x2 (common) x3 (rare)
      Red Element - Bomb Fragment x1 (common) x2 (rare)

Candle of Life
   Steal: Don Tonberry - Candle of Life x2 (common)
      Fallen Monk (both) - Candle of Life x2 (common)
      Pteryx - Candle of Life x1 (rare)
   Unlock: Coeurl Regina for 99 by completing the Mushroom Rock Road 
      Area Conquest.  

Chocobo Feather
   Steal: Cactuar - Chocobo Feather x1 (common)
      Fenrir - Chocobo Feather x2 (common)
      Qactuar - Chocobo Feather x1 (common)
   Unlock: Fenrir for 99 by capturing 3 of each fiend wolf species.


Chocobo Wing
   Steal: Cactuar - Chocobo Wing x1 (rare)
      Cactuar King - Chocobo Wing x2 (common)
      Fenrir - Chocobo Wing x1 (rare)
      Ornitholestes - Chocobo Wing x1 (rare)
   Bribe: Machea - Chocobo Wing x60 for 360,000 gil
   Unlock: Cactuar King for 99 by Thunder Plains Area Conquest.  


Dark Matter
   Drop: All Monster Arenas Bosses drop as rare item. x1 for a regular kill.  
x2 for Overkill.
   Bribe: Land Worm - Dark Matter x2 for 1,600,000 gil
   Unlock: Ultima Buster for 99 by capturing 5 all fiends in the game.

Designer Wallet
   Drop: Catastrophe - Designer Wallet x1 (common) x2 (overkill)
   Steal: Cactuar King - Designer Wallet x1 (rare)
      Don Tonberry - Designer Wallet x1 (rare)
   Bribe: Defender Zero - Designer Wallet x5 for 846,000 gil
   Unlock: Vorban for 60 by completing Omega Ruins Area Conquest.

Doors to Tomorrow
   Drop: Bomb King - Doors to Tomorrow x1 (common) x2 (overkill)
   Steal: Ultima Weapon - Door to Tomorrow x10 (common) x20 (rare)
   Bribe: Mech Scouter - Door to Tomorrow x1 for 55,000 gil
      Mech Leader - Door to Tomorrow x2 for 74,000 gil (BEST DEAL)
   Unlock: Catastrophe for 99 by completing 6 Area Conquests.

Dragon Scale
   Steal: Aqua Flan - Dragon Scale x2 (rare)
      Maze Larva - Dragon Scale x2 (rare)
      Octopus - Dragon Scale x2 (common)
      Phlegyas - Dragon Scale x2 (common)
      Remora - Dragon Scale x1 (common) x2 (rare)
      Sahagin B - Dragon Scale x2 (rare)
      Sahagin C - Dragon Scale x1 (rare)
      Water Flan - Dragon Scale x2 (rare)
   Bribe: Splasher - Dragon Scale x4 for 4,000 gil

Dream Powder
   Steal: Bandersnatch - Dream Powder x2 (common) x3 (rare)
      Skoll - Dream Powder x1 (common) x2 (rare)
   Bribe: Skoll - Dream Powder x12 for 20,000 gil (BEST DEAL)
      Bandersnatch - Dream Powder x20 for 36,000 gil

Echo Screen
   Steal: Floating Death - Echo Screen x1 (common)

Electro Marble
   Steal: Aerouge - Electro Marble x1 (common)
      Gandarewa - Electro Marble x1 (common) x2 (rare)
      Gold Element - Electro Marble x1 (common) x2 (rare)
      Thunder Flan - Electro Marble x1 (common) x2 (rare)
      Yellow Element - Electro Marble x1 (common)

Elixir
   Dropped: Crawler
      Oblitzerator
   Steal: Seymour - Elixir (rare)
      Seymour Flux - Elixir x1 (common/rare)
      YKT-11 - Elixir x2 (rare)
   Bribe: YKT-63 - Elixir x8 for 84,000 gil
      YKT-11 - Elixir x12 for 124,000 gil (BEST DEAL)
   Other: Remiem Temple chocobo race - One chest and zero poles touched       for 
1 Elixir.  One time only.
      Thunder Plains - Struck by 80 consecutive bolts for 1. One time only.
      Magic Urn prize (Cavern of the Stolen Fayth).


Ether
   Steal: Behemoth - Ether x1 (common)
      Exoray - Ether x1 (rare)
      Funguar - Ether x1 (rare)
      Guado Guardian B - Ether x1 (rare)
      Sin (Overdrive) - Ether x1 (common)
      Spectral Keeper - Ether x1 (common)
      Spherimorph - Ether x1 (common)
      Thorn - Ether x1 (rare)
      YAT-97 - Ether x2 (rare)
      YAT-99 - Ether x1 (rare)
      YKT-63 - Ether x1 (rare)
   Bribe: Guado Guard A - Ether x10 for 40,000 gil (BEST DEAL)
      YAT-99 - Ether x10 for 54,000 gil
      YAT-97 - Ether x16 for 74,000 gil

Farplane Shadow
   Steal: Anima - Farplane Shadow x1 (rare)
      Espada - Farplane Shadow x4 (common)
      Ghost - Farplane Shadow x1 (rare)
      Master Coeurl - Farplane Shadow x2 (common) x4 (rare)
      Tonberry - Farplane Shadow x1 (rare)
      Wraith - Farplane Shadow x1 (common)

Farplane Wind
   Drop: Don Tonberry Farplane Wind x3 (common) x6 (overkill)
   Steal: Coeurl Regina - Farplane Wind x2 (common)
      Espada - Farplane Wind x1 (rare)
      Sleep Sprout - Farplane Wind x1 (rare)
      Varuna - Farplane Wind x1 (common)
      Wraith - Farplane Wind x1 (rare)
      Yunalesca - Farplane Wind x1 (rare)
   Bribe: Epaaj - Farplane Wind x25 for 174,000 gil (BEST DEAL)
      Ahriman - Farplane Wind x6 for 56,000 gil
      Wraith - Farplane Wind x60 for 444,440 gil
   Unlock: Chimerageist for 60 by completing Calm Lands Area Conquest.

Fire Gem
   Steal: Bomb King - Fire Gem x4 (common)
      Flame Flan - Fire Gem x1 (common) x2 (rare)
      Grenade - Fire Gem x2 (common) x3 (rare)
      Puroburos - Fire Gem x3 (common) x4 (rare)
   Bribe: Bomb B - Fire Gem x14 for 44,000 gil
      Flame Flan - Fire Gem x10 for 30,000 gil (BEST DEAL)
      Grenade - Fire Gem x12 for 150,000 gil

Fish Scale
   Steal: Aqua Flan - Fish Scale x2 (common)
      Blue Element - Fish Scale x2 (common) x3 (rare)
      Maze Larva - Fish Scale x2 (common)
      Sahagin B - Fish Scale x2 (common)
      Sahagin C - Fish Scale x2 (common)
      Water Flan - Fish Scale x1 (common)

Friend Sphere
   Dropped: Biran Ronso - rare
      Master Coeurl - rare
      Spirit - rare
      Yenke Ronso - rare
      Vorban
   Steal: Neslug - Friend Sphere x1 (rare)
   Bribe: Coerl - Friend Sphere x2 for 120,000 gil

Gambler's Spirit
   Drop: Orintholestes - Gambler's Spirit x2 (common) x4 (Overkill)
   Steal: Catastrophe - Gambler's Spirit x1 (common)
      Earth Eater - Gambler's Spirit x1 (common)
      Greater Sphere - Gambler's Spirit x1 (common)
      Neslug - Gambler's Spirit x1 (common)
      Omega Weapon - Gambler's Spirit x1 (common) x2 (rare)
      Shinryu - Gambler's Spirit x1 (common)
      Th'uban - Gambler's Spirit x1 (common)
      Ultima Buster - Gambler's Spirit x1 (common)
   Bribe: Floating Death - Gambler's Spirit x10 for 134,000 gil
   Unlock Th'uban for 99 by completing 6 Species Conquests.

Gold Hourglass
   Steal: Fafnir - Gold Hourglass x2 (common)
      Mushussu - Gold Hourglass x1 (rare)
      Nidhogg - Gold Hourglass x1 (rare)
   Bribe: Mushussu - Gold Hourglass x5 for 13,600 gil (BEST DEAL)
      Nidhogg - Gold Hourglass x12 for 40,000 gil
   Unlock: Tanket for 99 by capturing 3 of each armored fiend species.

Healing Spring
   Drop: Kottos - Healing Spring x20 (Common) x40 (Overkill)
   Steal: Achelous - Healing Spring x1 (rare)
      Catoblepas - Healing Spring x3 (common)
      Vorban - Healing Spring x2 (common)
   Bribe: Octopus - Healing Spring x20 for 90,000 gil (BEST DEAL)
      Phlegyas - Healing Spring x6 for 33,600 gil
      Achelous - Healing Spring x16 for 102,000 gil
   Unlock: Sleep Sprout for 99 by capturing 5 of each fungus species.

Healing Water
   Steal: Adamantoise - Healing Water x1 (common)
      Behemoth King - Healing Water x1 (common)
   Bribe: Anacondaur - Healing Water x16 for 116,000 gil

Holy Water
   Steal: YAT-97 - Holy Water x3 (common)
      YKT-11 - Holy Water x3 (common)

Hypello Potion
   Steal: Bunyip - Hypello Potion x1 (rare)
      Halma - Hypello Potion x3 (common)
      Mafdet - Hypello Potion x1 (rare)
      Murussu - Hypello Potion x1 (rare)
      Raldo - Hypello Potion x1 (rare)
      Shred - Hypello Potion x1 (common) x2 (rare)
   Bribe: Raldo - Hypello Potion x10 for 4,800 gil (BEST DEAL)
      Bunyip - Hypello Potion x16 for 8,000 gil
      Mulfushu - Hypello Potion x24 for 11,600 gil (2nd BEST DEAL)
      Mafdet - Hypello Potion x28 for 14,200 gil
      Shred - Hypello Potion x50 for 39,000 gil

Ice Gem
   Steal: Chimera Brain - Ice Gem x1 (common)
   Bribe: Ice Flan - Ice Gem x9 for 27,000 gil

Light Curtain
   Drop: Fafnir x 20 (common) x40 (overkill)
   Steal: Gemini - Light Curtain x1 (common) x2 (rare)
      Iron Giant - Light Curtain x1 (common) x2 (rare)
      Ironclad - Light Curtain x4 (common)
      Tanket - Light Curtain x4 (common)
   Unlock: Juggernaut for 99 by capturing 5 of each horned fiend.

Lightning Gem
   Steal: Chimera Brain - Lightning Gem x2 (rare)
      Imp - Lightning Gem x1 (common) x2 (rare)
      Vidatu - Lightning Gem x4 (common)

Lightning Marble
   Steal: Aerouge - Lightning Marble x1 (rare)
      Chimera A - Lightning Marble x3 (rare)
      Chimera B - Lightning Marble x3 (common)
      Yellow Element - Lightning Marble x1 (rare)
   Bribe: Yellow Element - Lightning Marble x6 for 6,000 gil
      Thunder Flan - Lightning Marble x8 for 9,600 gil
      Gandarewa - Lightning Marble x3 for 2,960 gil (BEST DEAL)
      Aerouge - Lightning Marble x4 for 4,000 gil
      Gold Element - Lightning Marble x20 for 24,000 gil

Lunar Curtain
   Steal: Crawler - Lunar Curtain x1 (common) x2 (rare)
      Defender - Lunar Curtain x1 (common) x2 (rare)
      Defender X - Lunar Curtain x4 (common/rare)
      Defender Z - Lunar Curtain x2 (common/rare)
      Juggernaut - Lunar Curtain x4 (common)
      Jumbo Flan - Lunar Curtain x4 (common)
      Larva - Lunar Curtain x1 (common) x2 (rare)
      One-Eye - Lunar Curtain x3 (common)
      Tanket - Lunar Curtain x4 (rare)
   Unlock: Abadon for 99 by completing the Inside Sin Area Conquest.
   Other: Magic Urn prize (Cavern of the Stolen Fayth).

Lv. 2 Key Sphere
   Dropped: Chocobo Eater - rare
      Defender X
      Defender Z
      Seymour Natus (x2)
      Spherimorph
      Tonberry - rare
      Varuna - rare
   Steal: Catastrophe - Level 2 Key Sphere x1 (rare)
   Bribe: Behemoth - Level 2 Key Sphere x30 for 460,000 gil

Mana Spring
   Steal: Chimerageist - Mana Spring x2 (common)
      Coeurl - Mana Spring x1 (common) x2 (rare)
      Marlboro Menace - Mana Spring x2 (rare)
      Master Tonberry - Mana Spring x1 (common)
   Unlock: Vidatu for 99 by capturing 4 of each imp fiend species.

Mana Tablet
   Drop: Abadon - Mana Tablet x1 (common) x2 (overkill)
   Steal: Behemoth - Mana Tablet x1 (rare)
      Jumbo Flan 1 rare
   Bribe: Chimera A - Mana Tablet x10 for 105,000 gil
   Unlock: Ironclad for 60 by capturing 10 of each iron giant fiend 
      species.

Mana Tonic
   Drop: Marlboro Menace - Mana Tonic x2 (common) x4 (overkill)
   Steal: Great Marlboro - Mana Tonic x1 (rare)
      Jumbo Flan - Mana Tonic x1 (rare)
      Vidatu - Mana Tonic x1 (rare)
   Bribe: Gemini (Blue) - Mana Tonic x10 for 720,000 gil
   Unlock: Hornet for 60 by capturing 4 of each bee fiend species.

Mega Phoenix
   Dropped: Extractor
      Mech Hunter - rare
      Mech Defender - rare
      YAT - 97 - rare
      YAT - 99 - rare
   Bribe: Alcyone - Mega Phoenix x2 for 8,600 gil (BEST DEAL)
      Ghost - Mega Phoenix x38 for 199,980 gil
   Unlock: Pteryx for 99 by capturing 4 of each bird fiend species.

Megalixir
   Bribe: Xiphos - Mega Elixir x1 for 54,000 gil (BEST DEAL)
      Varuna - Mega Elixir x20 for 1,120,000 gil
   Unlock: Shinryu for 30 by capturing all underwater fiend species.
   Other: Remiem Temple Chocobo Race - Two chest and zero poles for 2. One 
time only.
   Thunder Plains - 150 consecutive bolts dodged for 4 Megaelixirs.

Musk
   Steal: Ahriman - Musk x2 (common) x3 (rare)
      Buer - Musk x1 (rare)
      Evil Eye A - Musk x1 (common) x2 (rare)
      Evil Eye B - Musk x1 (common) x2 (rare)
      Floating Death - Musk x4 (common) x5 (rare)
      Floating Eye - Musk x1 (rare)
      Sandragora - Musk x10 (rare)
   Bribe: Floating Eye - Musk x1 for 2,800 gil
      Buer - Musk x2 for 4,600 gil
      Evil Eye A - Musk x3 for 6,200 gil (BEST DEAL)
      Evil Eye B - Musk x4 for 8,600 gil

Pendulum
   Drop: Neslug x1 (common) x2 (overkill)
   Bribe: Master Tonberry - Pendulum x3 for 960,000 gil
      Ultima Weapon - Pendulum x99 for 1,400,000 gil (BEST DEAL)
      Other: Remiem Temple chocobo race - 4 Chests and zero poles touched 
for 30 Pendulums.  One time only.

Petrify Grenade
   Steal: Anacondaur - Petrify Grenade x1 (common) x2 (rare)
      Basilisk - Petrify Grenade x1 (common) x2 (rare)
      Cave Iguion - Petrify Grenade x1 (rare)
      Demonolith - Petrify Grenade x2 (common/rare)
      Dinonix - Petrify Grenade x1 (rare)
      Iguion - Petrify Grenade x1 (rare)
      Ipiria - Petrify Grenade x1 (rare)
      Jormungand - Petrify Grenade x4 (common)
      Melusine - Petrify Grenade x1 (rare)
      Raptor - Petrify Grenade x1 (rare)
      Yowie - Petrify Grenade x2 (rare)
      Zaurus - Petrify Grenade x2 (common) x3 (rare)
   Bribe: Dinonix - Petrify Grenade x2 for 2,800 gil
      Ipiria - Petrify Grenade x3 for 3,600 gil (BEST DEAL)
      Raptor - Petrify Grenade x2 for 4,000 gil
      Basilisk - Petrify Grenade x24 for 40,500 gil
      Melusine - Petrify Grenade x4 for 5,300 gil (2nd BEST DEAL)
      Iguion - Petrify Grenade x5 for 7,400 gil
      Cave Iguion - Petrify Grenade x6 for 11,000 gil
      Yowie - Petrify Grenade x12 for 18,000 gil
   Unlock: Jormungand for 99 by completing Djose Area Conquest.

Poison Fang
   Steal: Bite Bug - Poison Fang x1 (rare)
      Killer Bee - Poison Fang x1 (rare)
      Hornet - Poison Fang x4 common
      Nebiros - Poison Fang x1 (common) x3 (rare)
      Sleep Sprout - Poison Fang x4 (common)
      Poison Fang - Poison Fang x1 (rare)
   Bribe: Killer Bee - Poison Fang x1 for 2,200 gil 
      Bite Bug - Poison Fang x2 for 4,000 gil (BEST DEAL)
      Wasp - Poison Fang x3 for 7,200 gil
      Nebiros - Poison Fang x6 for 14,000 gil 
   Unlock: Marlboro Menace for 99 by completing Kilika Area Conquest.

Purifying Salt
   Steal: Abadon - Purifying Salt x3 (common)
      Fallen Monk (both) - Purifying Salt x1 (rare)
      Warrior Monk (both) - Purifying Salt x1 (rare)
   Unlock: Fafnir for 99 by capturing 4 of each dragon fiend species.

Remedy
   Steal: Grat - Remedy x3 (rare)
      Great Marlboro - Remedy x1 (common)
      Mandragora - Remedy x2 (common) x3 (rare)
      Marlboro - Remedy x1 (common) x2 (rare)
      Marlboro Menace - Remedy x4 (common)
      Ochu - Remedy x1 (common) x2 (rare)
      Ragora - Remedy x1 (rare)
      Sandragora - Remedy x2 (common)
      YAT-99 - Remedy x1 (common)
   Bribe: Lord Ochu - Remedy x80 for 92,980 gil (BEST DEAL)
      Ragora - Remedy x8 for 15,600 gil (2nd BEST DEAL)
      Ochu - Remedy x70 for 144,000 gil
      Sandragora - Remedy x99 for 255,000 gil
      Grat - Remedy x40 for 80,000 gil

Return Sphere
   Dropped: Biran Ronso
      Santuary Keeper
      Sinspawn: Genais
      Yenke Ronso
      Chimerageist - Return Sphere x1 (common) x2 (overkill)
   Steal: Greater Sphere - Return Sphere x1 (rare)
   Bribe: Dark Element - Return Sphere x3 for 36,000 gil (BEST DEAL)
      Mandragora - Return Sphere x24 for 620,000 gil

Shining Gem
   Drop: Coeurl Regina - Shining Gem x3 (common) x6 (overkill)
   Steal: Abadon - Shining Gem x1 (rare)
      Black Element - Shining Gem x4 (rare)
      Bomb King - Shining Gem x4 (rare)
      Chimera B - Shining Gem x1 (rare)
      Juggernaut - Shining Gem x1 (rare)
      Right Fin of Sin - Shining Gem x1 (rare)
      Seymour Omnis - Shining Gem x1 (common)
      Sinspawn: Genais - Shining Gem (rare)
      Varuna - Shining Gem x1 (rare)
   Bribe: Puroburos - Shining Gem x36 for 400,000 gil
   Unlock: Espada for 60 by completing Macalania Area Conquest.

Silence Grenade
   Steal: Anima - Silence Grenade x3 (common)
      Bat Eye - Silence Grenade x1 (rare)
      Exoray - Silence Grenade x1 (common)
      Funguar - Silence Grenade x1 (common)
      Thorn - Silence Grenade x2 (common
   Bribe: Bat Eye - Silence Grenade x12 for 7,600 gil

Silver Hourglass
   Steal: Kusariqqu - Silver Hourglass x1 (rare)
      Lamashtu - Silver Hourglass x1 (rare)
      Vouivre - Silver Hourglass x1 (rare)
   Bribe: Vouivre - Silver Hourglass x10 for 5,100 gil
      Lamashtu - Silver Hourglass x10 for 5,500 gil
      Kusariqqu - Silver Hourglass x20 for 8,900 gil (BEST DEAL)
   Unlock: Don Tonberry for 40 by completing Sunken Cave Area Conquest.

Skill Sphere: 
   Bribe: Zuu - Skill Sphere x2 for 360,000 gil

Sleeping Powder
   Steal: Dingo - Sleeping Powder x1 (rare)
      Garm - Sleeping Powder x1 (rare)
      Mi'ihen Fang - Sleeping Powder x1 (rare)
      Sand Wolf - Sleeping Powder x2 (common) 
      Snow Wolf - Sleeping Powder x1 (common) x2 (rare)
   Bribe: Dingo - Sleeping Powder x4 for 2,500 gil (BEST DEAL)
      Mi'ihen Fang - Sleeping Powder x5 for 3,200 gil (2nd BEST DEAL)
      Garm - Sleeping Powder x7 for 4,800 gil
      Snow Wolf - Sleeping Powder x11 for 8,000 gil 
      Sand Wolf - Sleeping Powder x12 for 9,000 gil

Smoke Bomb
   Steal: Alcyone - Smoke Bomb x1 (common) x2 (rare)
      Condor - Smoke Bomb x1 (rare)
      Garuda C - Smoke Bomb x1 (common) x2 (rare)
      Pteryx - Smoke Bomb x4 (common)
      Smoke Bomb - Smoke Bomb x1 (common) x2 (rare)
      Stratavis - Smoke Bomb x3 (common)
      Zuu - Smoke Bomb x3 (common) x4 (rare)
   Bribe: Condor - Smoke Bomb x3 for 1,900 gil (BEST DEAL)
      Garuda - Smoke Bomb x99 for 80,000 gil
      Simurgh - Smoke Bomb x5 for 4,000 gil

Soft
   Steal: Cave Iguion - Soft x1 (common)
      Dinonix - Soft x1 (common)
      Iguion - Soft x1 (common)
      Ipiria - Soft x1 (common)
      Melusine - Soft x1 (common)
      Raptor - Soft x1 (common)
      Yowie - Soft x1 (common)

Soul Spring
   Steal: Bashura - Soul Spring x1 (common) x2 (rare)
      Kottos - Soul Spring x2 (rare)
   Unlock: Kottos for 99 by completing Mi'ihen Highroad Area Conquest.

Special Sphere
   Dropped: Seymour - rare
   Bribe: Adamantoise - Special Sphere x6 for 1,088,000 gil

Stamina Spring
   Steal: Chimerageist - Stamina Spring x2 (rare)
      Evrae Altana - Stamina Spring x1 (rare)
      Fafnir - Stamina Spring x2 (rare)
      Kottos - Stamina Spring x4 (common)
      Land Worm - Stamina Spring x1 (common) x2 (rare)
      Ogre - Stamina Sprimg x1 (common) x2 (rare)
      Sand Worm - Stamina Spring x2 (rare)
      Sin's Core - Stamina Spring x3 (common) x4 (rare)
      Spirit - Stamina Spring x1 (common) x2 (rare)
      Stratavis - Stamina Spring x2 (rare)
   Bribe: Bashura - Stamina Spring x80 for 340,000 gil
   Unlock: Orintholestes for 99 by capturing 1 of each lizard fiend 
      species.

Stamina Tablet
   Steal: Abyss Worm - Stamina Tablet x1 (rare)
      Adamantoise - Stamina Tablet x1 (rare)
      Ironclad - Stamina Tablet x1 (rare)
      Vorban - Stamina Tablet x1 (rare)
   Bribe: Ogre - Stamina Tablet x50 for 188,000 gil (BEST DEAL)
      Defender - Stamina Tablet x20 for 240,000 gil
   Unlock: One-Eye for 60 by capturing 4 of each eyeball fiend species.

Stamina Tonic
   Drop: Abyss Worm x1 (common) x2 (overkill)
   Steal: Catoblepas - Stamina Tonic x1 (rare)
      Machea - Stamina Tonic x1 (rare)
   Bribe: Iron Giant - Stamina Tonic x1 for 72,000 gil (TIE)
      Gemini (Red) - Stamina Tonic x10 for 720,000 gil (TIE)
   Unlock: Stratavis for 99 by completing Besaid Area Conquest.

Star Curtain
   Steal: Barbatos - Star Curtain x1 (common)
      Dark Flan - Star Curtain x1 (common) x2 (rare)
      Nega Elemental - Star Curtain x4 (common)
      Sinspawn: Genais - Star Curtain x1 (common)
   Unlock: Nega Elemental for 99 by capturing 3 of each elemental fiend 
      species.
   Other: Remiem Temple - Defeat Belgemine's Shiva at least twice for 6 at 
a time.

Supreme Gem
   Drop: Jormungand - Supreme Gem x2 (Common) x4 (Overkill)
   Steal: Left Fin of Sin - Supreme Gem x1 (rare)
      Seymour Omnis - Supreme Gem x1 (rare)
      Sin (Overdrive) - Supreme Gem x1 (rare)
   Bribe: Halma - Supreme Gem x20 for 260,000 gil
   Unlock: Greater Sphere for 60 by completing 2 Species Conquests.

Teleport Sphere
   Dropped: Master Tonberry - Teleport Sphere x1 (rare)
      Sleep Sprout - Teleport Sphere x1 (common) x2 (overkill)
   Steal: Th'uban - Teleport Sphere x1 (rare)
   Bribe: Barbatos - Teleport Sphere x20 for 1,900,000 gil

Tetra Elemental
   Steal: Master Tonberry - Tetra Elemental x1 (rare)
      Seymour Natus - Tetra Elemental x2 (common) x3 (rare)

Three Stars
   Drop: Catoblepas x1 (common) x2 (overkill)
   Steal: Jormungand - Three Stars x1 (rare)
      Shinryu - Three Stars x1(rare)
   Bribe: Behemoth King - Three Stars x14 for 1,350,000 gil
   Unlock Earth Eater for 60 by completing 2 Area Conquests.
   Other: Remiem Temple chocobo race - Five chests and zero poles touched 
for 60 Three Stars.  One time only.

Turbo Ether
   Steal: Sanctuary Keeper - Turbo Ether x1 (common) x2 (rare)
      Seymour - Turbo Ether x1 (common)
      Spectral Keeper - Turbo Ether x1 (rare)
      Spherimorph - Turbo Ether x1 (rare)
   Unlock: Bomb King for 60 by capturing 5 of each bomb fiend species.

Twin Stars
   Drop: Nega Elemental - Twin Stars x2 (common) x4 (overkill)
   Steal: Behemoth King - Twin Stars x2 (rare)
      Nega Elemental - Twin Stars x1 (rare)
   Bribe: Spirit - Twin Stars x10 for 200,000 gil
   Unlock: Jumbo Flan for 60 by capturing 3 of each flan fiend species.

Underdog's Secret
   Drop: Th'uban - Underdog's Secret x1 (common) x2 (overkill)
   Bribe: Chimera B - Underdog's Secret x15 for 180,000 gil
   Other: Collect all 26 Al Bhed Primers and talk to Rin on the Airship to 
receive 99 Underdog secrets.  

Water Gem
   Steal: Achelous - Water Gem x2 (common)
      Evrae - Water Gem x1 (common) x2 (rare)
      Evrae Altana - Water Gem x2 (common)
      Maelspike - Water Gem x2 (common) x3 (rare)
      Octopus - Water Gem x2 (rare)
      Phlegyas - Water Gem x1 (rare)
   Bribe: Piranha - Water Gem x1 for 1,000 gil (BEST DEAL)
      Water Flan - Water Gem x2 for 6,300 gil
      Blue Element - Water Gem x9 for 30,000 gil
      Sahagin B - Water Gem x8 for 27,600 gil 
      Sahagin C - Water Gem x3 for 7,600 gil (2nd BEST DEAL)
      Aqua Flan - Water Gem x15 for 40,500 gil
      Maze Larvae - Water Gem x14 for 44,440 gil
      Remora - Water Gem x20 for 60,000 gil

White Magic Sphere
   Bribe: Dark Flan - White Magic Sphere x2 for 256,000 gil

Wings to Discovery
   Drop: Shinryu x1-2 (Monster Arena)
   Bribe: Great Marlboro - Wings to Discovery x8 for 1,280,000 gil
      Marlboro - Wings to Discovery x4 for 540,000 gil (BEST DEAL)
    Other: Remiem Temple chocobo race - 3 chests and zero poles for 30 Wings 
to Discovery. One time only.

Winning Formula
   Drop: Ultima Buster - Winning Formula x1 (common) x2 (overkill)
   Bribe: Sand Worm - Winning Formula x15 for 900,000 gil
   Unlock Neslug for 99 by completing all Area Conquests.

X-Potion
   Dropped: Worker - rare
   Steal: Guado Guardian A - X-Potion x1 (rare)
      Guado Guardian C - X-Potion x2 (rare)
      Right Fin of Sin - X-Potion x1 (common)
      Wendigo - X-Potion x1 (rare)
   Bribe: Guado Guardian C - X-Potion x30 for 52,000 gil (BEST DEAL)
      Valaha - X-Potion x60 for 174,000 gil
-----------------------------------------------------------------------

-----------------------------------------------------------------------
IV. Fast and east gil tricks.
-----------------------------------------------------------------------

Heh, heh.  This is going to become one of your favorite FAQs because of this 
section right here.  All this info on customizing can be used to get some 
fast and easy gil.  The Monster Arena plays a major role in most of the methods, 
and is accessible as soon as you reach the Calm Lands.  Square perhaps 
purposely placed in such methods for the more wily gamers.  "You just gotta 
know how to work it."

Method 1: Mimics in the Omega Ruins

This method is the most obvious, and it has the fewest requirements.
Requires: Airship
	Steal ability
	Armor with Stoneproof (Optional, but highly recommended)
	Weapon with First Strike (Also Optional, but recommended)
	Weapon with Gillionaire (VERY HIGHLY RECOMMENDED)

First, you'll need to find the Omega Ruins.  The Omega Ruins are a hidden 
location on the world map and is one of the better locations if you ever want 
to beef up.  It's also the lair of Ultima and Omega Weapon, both are pathetic 
bosses who don't pose much of a challenge at all.  You can Steal 99 Doors 
to Tomorrow and Bribe 99 Pendulums for 1.4 gil from Ultima, and then have 
Kimarhi use Lancet on Omega to learn the Nova Ronso Rage for his Overdrive.  
But, that's not what we're really interested in.  

The location of the Omega Ruins is around 70 X and 35 Y using the Airship 
Search command.

The fiends down here are tough.  Stoneproof is suggested in case you run into 
Demonoliths, who have an instant Petrification Breath on all frontline 
characters.  Play it save and have at least one frontline person with 
Stoneproof on their armor.  As another safety precaution, I suggest First 
Strike in case you come face to face with Great Marlboros.  Inside Sin, Great 
Marlboros don't always ambush the party, however, when you battle them in 
the Omega Ruins the Ambush rate is close to 100%.  Give someone who can take 
them out First Strike on a weapon.  This will allow you to take an action 
before the Great Marlboro can use Bad Breath.  You can create a Wind Rod for 
Yuna and have her summon an Aeon to take the hit.  Another method is giving 
First Strike with someone who knows Provoke.  By using Provoke, the fiend 
will squirt something out from somewhere near it's eyes for small damage 
instead of hitting everyone with status ailments.  If your characters are 
pretty strong, give First Strike to someone who can take them out with one 
shot.  If Auron has his Masamune activated with the Mars crest and sigil, 
First Strike is already on that weapon.

You'll absolutely need the Steal ability.  Mug won't work.  What you're 
looking for are treasure chests.  They have only 1HP, so using Mug will inflict 
damage and destroy the chest altogether while Steal will allow you to 
effectively open the chest.  In some cases, you'll gain a regular item from 
the chest, which is okay, but most times the chest will have "Nothing to 
steal."  When you get this message, it means you've found a Mimic.  These 
fiends will burst up from the treasure chests as dark spirits.  There are 
four types with different HP.  Yet all four types will drop 50,000 gil if 
you manage to kill them.  If you have Gillionaire on a weapon and that 
character participates in the battle, the amount will be doubled.  I suggest 
activating Rikku's Godhand, which already has Gillionaire on it.  Remember 
also, you MUST open the treasure chest before eliminating all other fiends 
or the battle win end prematurely.

Method 2: "Golden-One-Eye"

This method was first figured out by Squall6Cloud of the PlayOnline Message 
Board.  It's for the more advanced players since One-Eye can be a little hard 
to beat if you're not strong enough.  Actually, even with high stats, One-Eye 
can ambush the party and knock everyone out with his Shockwave attack, which 
inflicts Sleep, Confuse and Silence all at once.  Yet once you get past that, 
he's very easy.
Requirements: Unlock One-Eye by capturing at least 4 of each flying 
   eyeball species: Floating Eye (Mi'ihen Highroad)
      Buer (Thunder Plains)
      Evil Eye (Macalania Snowfield)
      Ahriman (Mt. Gagazet or Inside Sin)
      Floating Death (Omega Ruins)
   8000 gil to fight One-Eye
   Pretty beefed-up characters.  HP around 9999, Agility near 90.
   Celestial Weapons are suggested.
   Armor with Sleepproof and Confuseproof-optional.  Don't bother if you 
think you're strong enough. 

"how to make between 335k-1.1mill in 10min 
1- You need to do over 50,000 per hit.  
2- Quick hit helps, on all characters.  
3- You need to have released One Eye in monster arena.  
 
What to do:  
Fight One eye. Do quick hit with everyone. If everyone does over 50k, that 
means he is dead in 3 hits. I tested within 10 minute time period. You get 
to fight him about 18 times. That means the cost is 144,000. However after 
selling all the equipment he drops, you will make an average of 479,764. Or 
a max of 1,216,008. Take the cost of 144,000 out of it and that means in 10 
minutes you can make on average 335,764 and max 1,072,008 coins."

First purchase Capture weapons from the man at the Monster Arena and capture 
the necessary fiends.  Then return to the Arena with at least 8000+ gil.  Save 
at the sphere if you so wish.  Choose to battle One-Eye from the Species 
Conquest.

Hopefully, you won't get ambushed.  One-Eye is actually one of the easiest 
Bosses of the Arena.  He only has 150000 HP, so he'll go down in a few hits 
of 99999 from your characters.  Once you get past his Shockwave attack, 
One-Eye is a pushover.  If you continually have problems with ambushes, I 
suggest First Strike on a weapon for Yuna so she can call an Aeon.

After the battle, you'll see why this method works.  As items, he'll drop 
Dark Matters as a rare item, 1 for a regular kill and 2 for an Overkill (15000 
damage).  For common items, he'll drop Magic Defense spheres, 1 for a regular 
kill, 2 for an Overkill.  The Dark Matters can be sold for 7500 gil each!  
But, that's not the best part.  He'll also drop equipment.  Armor will come 
with MP+% while Weapons will come with Triple AP.  These Triple AP weapons 
will sell for 15000+ gil!!!  Keep fighting him until your satisfied and sell 
all the weapons and armor he dropped for big bucks!

Method 3: Regen-erate your profit!

Similar to #2, this method relies on the Monster Arena.  This was discovered 
by Evandownie of the PlayOnline Message Board.  This method takes a bit more 
work as far as customizing, but it's very fast with strong characters.  Also, 
if you have weak characters who aren't strong enough for Omega Ruins, this 
is the best way to go.
Requirements: Unlock Kottos by capturing at least 1 of each fiend on Mi'ihen 
Highroad.
   6000 gil to fight Kottos

Here's evandownie's original post:
"how to make between 697338 and 940566 gil in 15 minutes. 
I dont know if this particular strategy has been posted before, but here it 
is anyways. Thanks to every1 who worked on the prices for items in that post, 
i cant find it right now. It was mentioned by llew that the price for a 4 
slotted armor with auto regen is worth 225187, so its worth buying tetra 
armors, as you still make a profit. This has a better average profit than 
the One eye method, but if yer really lucky one eye is still better.  
So, to put auto-regen on an armor, it requires 80 healing springs, and the 
cheapest place to get them is Kottos in the monster arena, as he drops 40 
if u overkill him.
In 15 minutes, i fought him 12 times, giving me 480 healing springs total, 
or 6 regen armors worth 225187 gil each.  

12 x 6000 (cost of fighting Kottos) = 72 000  
6 x 100000 (tetra armors) = 600 000  
6 x 225187 = 1351122  
so the profit from the tetras is Sale - Costs (1351122 - 672000 = 679122)  
The extra bit of money comes in from the items you recieve, which ranged from 
1518 gil to 21787 gil.  
1518 x 12 = 18216  
21787 x 12 = 261444  
so we get between 697336 gil and 940566 gil from all this."

3a. If your characters are rather weak, it might be hard to kill Kottos, but 
the method will still work.  Here's what you'll need:
   2 Characters with Protect and curative spells.
   Auron with Sentinel or Guard Ability as well as a weapon with Counterattack 
or Evade and Counter.  If you can't find one, they can be customized with 
a Friend or Teleport Sphere. If you can't customize one, fight Bashuras. 
They're those ugly purple ape-looking things. They can be found in the Calm 
Lands or on Mt. Gagazet.

Enter a battle with Kottos with Auron and your 2 White magic users in the 
frontline.  Auron should have the countering weapon already equipped.  Have 
him use Sentinel (or Guard if you don't have Sentinel yet). Have the other 
two members cast Protect on him and maybe Regen.  Just do everything you can 
to keep Auron alive.  Now just wait for Kotto's turn to come up by pressing 
Triangle, but don't deactivate Sentinel. 
 
With Sentinel activated, Kottos will hit Auron no matter who was orginally 
targeted.  Hopefully Auron is strong enough to survive the hit, and he'll 
counterattack. Have the healers cast curative magic and heal up Auron. 
Reactivate Sentinel and keep countering until Kottos falls.  The prizes are 
now yours for the taking.

3b.  After so much fighting with One-Eye and Kottos, you'll probably have 
some extra weapons lying around.  Here's a way to get the most of of extra 
weapons.  For this to work, you need to have at least one character who can 
consistently deal 99999 damage. If you don't have this, then customize a 
weapon with First Strike for Yuna using 6 Chocobo Feathers and place her in 
the frontline.  
 
Now enter a battle with Sleep Sprout, which is unlocked after capturing 5 
of each funguar species.  
Funguar on Mushroom Rock Road or southern Djose Highroad 
Thorn in the Cavern of the Stolen Fayth  
Exoray Inside Sin.  
 
Overkill him with 99999 damage.  Celestial Weapons seem to work best in 
dealing 99999 while Customized weapons might come short.  If your using Yuna, 
have her summon an Aeon who will be able to take him down.  
 
You'll win either 2 Dark Matters as a rare item or 2 Teleport Spheres. Use 
the Teleport Spheres to customize Evade and Counter onto spare weapons. This 
attribute alone on a weapon will add 5500 gil to the selling price!

-----------------------------------------------------------------------V
. Frequently Asked Questions
-----------------------------------------------------------------------

1. Where can I get No Encounters?
- The best way to get No Encounters is to first forget about collecting 30 
Purifying Salts.  There are several fiends that drop equipment with No 
Encounters already customed.  Ghosts can be found in the Cavern of the Stolen 
Fayth, the cave where you meet Yojimbo.  Demonoliths hang out Inside Sin and 
around the Omega Ruins.  Finally, Geosgaeno, that HUGE fish that almost 
swallowed Tidus whole at the beginning of the game is waiting for you at Baaj 
Temple.  Out of the three, Ghosts are the easiest to kill.

2. I don't understand what the Monster Arena is you keep mentioning.
- The Monster Arena is on the far right side of the Calm Lands.  You should 
see a notch in the cliff with light shining from it.  Or you could just look 
on your map and look for the green dot.  In order to Capture a fiend, the 
deathblow must be dealt with someone equipped with a weapon with the Capture 
ability.  These weapons can only be bought at the Monster Arena.  After 
Capturing several monsters, you may unlock other creations in the Arena.  For 
more info, see CB!'s FAQ on the Monster Arena.  
(http://home.san.rr.com/circe/final_fantasy_x_monster_arena.txt)

3. I just started a game and looked in the menu, but I can't customize 
anything.
- The ability to Customize comes after Rikku joins you on the Moonflow and 
she teaches you in Guadosalam.  It's about 1/4 through the game.

4. What does this ability do?
- A complete list of Auto-Abilities and their function is available at all 
times in the Menu screen.  First enter the Menu, and then select Help at the 
bottom.  I might add in descriptions in a later version.  For more info, check 
out CB!'s guide.  
(http://home.san.rr.com/circe/final_fantasy_x_equipment_remodeling.txt)

5. I've heard about Celestial Weapons.  Where can I find Legendary Armor?
- There is no such thing as "Legendary Armor."  Perhaps this is because 
different armor is better in certain situations.  Consider these examples 
of "Legendary Armor:"
  ELEMENTAL - Fire Eater/Ice Eater/Water Eater/Lightning Eater
  STATUS AILMENTS - Deathproof/Stoneproof/Confuseproof/Berserkproof
  FIGHTERS - Break HP Limit/Auto-Haste/Auto-Protect or Auto-Regen or HP 
Stroll/Auto-Phoenix or Auto-Med
  WIZARDS - Break HP Limit/Auto-Haste/Break MP Limit or MP 
Stroll/Auto-Phoenix or Auto-Med
  THIEVES - Break HP Limit/Auto-Haste/Master Thief or 
Pickpocket/Auto-Phoenix or Auto-Med

***For any other questions, try FAQs already posted at GameFAQs 
(www.gamefaqs.com) and at CB!'s homepage(http://home.san.rr.com/circe).

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VI. Special Thanks and Closing.
-----------------------------------------------------------------------

Argh, this is about twenty pages long.  But at least it's finally done.  I 
hope people are able to make full use of this FAQ.  This is only the first 
version, so there may be some later adjustments.  Anyway, I just want to wish 
all the gamers good luck.  Also, this guide has only been sent to the GameFAQs 
site and the Neoseeker site.  If you found it somewhere other than 
www.gamefaqs.com or www.neoseeker.com, please contact me.

Special thanks to all the folks on the Message Boards at PlayOnline.com!  Our 
hard work finally paid off.  I hope all you guys can see this.  Peace and 
love, yall.

A *VERY* special thanks to CB! (Christine Bomke, 
http://home.san.rr.com/circe) for her amazing guides.  The information in 
Section III. was compiled from specifically her Bribe, Steal, Equipment 
Remodeling, and Monster Arena guides.

Also thanks to Square for making games so complicated that we need FAQs like 
this one. (http://www.playonline.com/) 
Thanks to Sony for all of that kicking technology they come up with.

And finally, to GameFAQs and Neoseeker for letting people know there is no 
shame in cheating at a video game.