Arright guys, so everyone has been asking for me to do a Poppy guide. If you don't know who I am or why you should care, my match history should speak for itself:
K, so you're gonna want 30/0/0 masteries, even if you're playing jungle Poppy. Poppy's early game is weak, so every little bit counts. For runes, you can do anything, really. Poppy benefits from a large variety of stats. I personally do scaling AD reds (not flats, because your full offense masteries are good enough for your early game and Poppy is about that endgame), a blend of flat and scaling mana regen yellows (Poppy has a low mana pool, and the mix of flat and scaling gives the best of both worlds), scaling AP blues (da burst, yo), and HP quints (becuase they sexy).
For the skill build, start E>Q>W then max W. Start E for the stun potential to allow for first bloods. Take Q because the aura around the hammer looks cool and intimidating (the damage too, I guess). Max W because it gives her AD, armor, and movement speed. The AD is self-explanatory, the armor works really well with her passive, and the movement speed is invaluable early game where Poppy is weak. Max E second. The damage increase is very good if you can collide, and despite having a higher mana cost, it's less mana-intensive than her Q. At max rank, Poppy can do 2 Q's for every E, so the Q's would cost more mana. Take the ult at 6/11/16 like a good boy.
For the item build, rush Sword of the Occult and Mejai's Soulstealer. Poppy has a bad early game, but a great lategame. You should pick up these two items because when you start snowballing, you'll be snowballing hard and can get out of the early game stage really quickly. Other good items to get after that are Ragebeard (for the hybridity), TF (because Poppy loves every stat in the game), Ohmwrecker (incredible dive potential with her ult), GA (same as Ohmwrecker), Infinity Edge, Warmogs, and Zhonya's Hourglass (see GA and Ohmwrecker).
The fruit...it's...it's taunting me! O_o A bush on the crotch is worth three in the park.