Pokemon stats explained! EVs, IVs, Natures, everything! PLEASE READ!

jayman7
Posted: 2/9/2014 10:14:41 PM
There are many misconceptions about how stats work in Pokemon. Allow me to explain the basics in this board FAQ.

How are stats determined?

Stats are calculated from a formula. This formula has been consistent since the third generation. And since the fifth generation, stat calculation always happens any time it needs to: end of battle, when stat-changing items are given, etc. The formula is as follows:

Stat = ((Base * 2 + IV + (EV/4)) * Level / 100 + 5) * Nmod

Except for HP, which is:

HP = (Base * 2 + IV + (EV/4)) * Level / 100 + 10 + Level

Everything rounds down.

Don't worry, I'll explain what each of these means!

Let's start with the "Base". What is that?

The Pokemon's base stats are determined by the Pokemon's species or forme. The only ways to change this are to evolve or change forme. Mega Evolutions have different base stats from their normal selves, too (except for HP; no Mega Evolution changes HP), usually higher.

You can look up a Pokemon's base stats on most good Pokemon fansites, such as Serebii or Bulbapedia.

Base stats are what the Pokemon would have at level 50 if it had a neutral Nature, no IVs, and no EVs... minus five in each stat (minus sixty for HP). So your stats will almost never perfectly match the bases. They're just a factor in the formula.

What are IVs?

IVs, or Individual Values, are hidden stats that every Pokemon has. They range from 0 to 31 in each stat, and cannot be changed without resorting to cheating devices.

At level 100, each IV adds one point to the corresponding stat, barring some skewing from Nature. That means up to 31 points per stat (again, ignoring Nature). As stats scale with level, you'll get less effect at lower levels; for instance, at level 50, it takes two IVs to make one stat point.

On a side note, IVs also determine the type of Hidden Power.

Wild Pokemon's IVs are determined randomly. That said, in the sixth gen (and not previous gens!), unbreedable Pokemon caught wild (that is, baby Pokemon, Nidorina, and legendaries - and theoretically Nidoqueen and Unown if they could be caught wild) will always have at least three perfect-31 IVs (maybe more, but never less than three.) The gift Celebi from Pokemon Bank will also have three perfect IVs, and expect this to hold for events for non-breedable Pokemon in the future.

Also, breedable Pokemon caught in the Friend Safari always have at least two perfect IVs.

So do I have to just catch a ton of Pokemon until I get one with perfect IVs?

Fortunately, no. When two Pokemon breed, three of their IVs are passed to the offspring; this increases to five if one parent is holding the Destiny Knot. While the RNG may not pick the most ideal IVs to pass down, good parents mean that the odds that the child gets good IVs are dramatically increased.

If one Pokemon is holding a Power item (Weight, Bracer, Belt, etc.), the IV of the stat that matches the item is guaranteed to pass down, but this does not work well if both parents hold one. The passed IV is counted the three that get passed down normally, but (at least according to Bulbapedia) it slightly interferes with the Destiny Knot and actually makes it so that it's possible that only four IVs pass down.

Whatever IVs are not passed down (three without Destiny Knot and one with) will still be randomized.

(not finished yet; wait for the next part!)
---
Creator of Jay's Journey (see quote!)
"It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere
Previous Versions
jayman7
Posted: 2/9/2014 10:02:57 PM
There are many misconceptions about how stats work in Pokemon. Allow me to explain the basics in this board FAQ.

How are stats determined?

Stats are calculated from a formula. This formula has been consistent since the third generation. And since the fifth generation, stat calculation always happens any time it needs to: end of battle, when stat-changing items are given, etc. The formula is as follows:

Stat = ((Base * 2 + IV + (EV/4)) * Level / 100 + 5) * Nmod

Except for HP, which is:

HP = (Base * 2 + IV + (EV/4)) * Level / 100 + 10 + Level

Everything rounds down.

Don't worry, I'll explain what each of these means!

Let's start with the "Base". What is that?

The Pokemon's base stats are determined by the Pokemon's species or forme. The only ways to change this are to evolve or change forme. Mega Evolutions have different base stats from their normal selves, too (except for HP; no Mega Evolution changes HP), usually higher.

You can look up a Pokemon's base stats on most good Pokemon fansites, such as Serebii or Bulbapedia.

Base stats are what the Pokemon would have at level 50 if it had a neutral Nature, no IVs, and no EVs... minus five in each stat (minus sixty for HP). So your stats will almost never perfectly match the bases. They're just a factor in the formula.

What are IVs?

IVs, or Individual Values, are hidden stats that every Pokemon has. They range from 0 to 31 in each stat, and cannot be changed without resorting to cheating devices.

At level 100, each IV adds one point to the corresponding stat, barring some skewing from Nature. That means up to 31 points per stat (again, ignoring Nature). As stats scale with level, you'll get less effect at lower levels; for instance, at level 50, it takes two IVs to make one stat point.

On a side note, IVs also determine the type of Hidden Power.

Wild Pokemon's IVs are determined randomly. That said, in the sixth gen (and not previous gens!), unbreedable Pokemon caught wild (that is, baby Pokemon, Nidorina, and legendaries - and theoretically Nidoqueen and Unown if they could be caught wild) will always have at least three perfect-31 IVs (maybe more, but never less than three.) The gift Celebi from Pokemon Bank will also have three perfect IVs, and expect this to hold for events for non-breedable Pokemon in the future.

Also, breedable Pokemon caught in the Friend Safari always have at least two perfect IVs.

So do I have to just catch a ton of Pokemon until I get one with perfect IVs?

Fortunately, no. When two Pokemon breed, three of their IVs are passed to the offspring; this increases to five if one parent is holding the Destiny Knot. While the RNG may not pick the most ideal IVs to pass down, good parents mean that the odds that the child gets good IVs are dramatically increased.

If one Pokemon is holding a Power item (Weight, Bracer, Belt, etc.), the IV of the stat that matches the item is guaranteed to pass down, but this does not work well if both parents hold one. The passed IV is counted the three that get passed down normally, but (at least according to Bulbapedia) it slightly interferes with the Destiny Knot and actually makes it so that it's possible that only four IVs pass down.

Whatever IVs are not passed down (three without Destiny Knot and one without) will still be randomized.

(not finished yet; wait for the next part!)
---
Creator of Jay's Journey (see quote!)
"It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere

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