>>30331734Here's a quick rundown about IVs, EVs, and Natures.
IVs are, in essence, a Pokemon's genes. For each stat, there is a hidden value running from 0 to 31 (32 values total). If the value is higher, then the stat will be higher, and vice versa. These are set from the moment you get the Pokemon and can only be changed through Hyper Training or Bottle Caps. You can manipulate IVs through SOS chaining for wild Pokemon. With eggs, having one parent hold a Destiny Knot will cause the offspring to pick an IV from each stat the parent has. Example: if parent A has 31 in HP while parent B has 18 in HP, the offspring will pick one of those values for its HP IV. A guy at the Battle Tree will tell you if a Pokemon has 0 in a stat by stating his concern, or 31 by giving his approval.
EVs are more like training. Each Pokemon you defeat has a set EV value that it yields upon KO to whoever participates in battle (unless you use EXP Share, which hits everyone with EVs). 4 EVs in a stat increase that stat by 1 point at level 100, and you can only give 255 to a single stat. A Pokemon is only allowed 510 total EVs, so it's important to spread them out to relevant stats. You can get more EVs per KO with Choice items, which give 4 EVs to a particular stat upon defeating a Pokemon.
And then there's Natures. They are a permanent modifier to stats. Each Nature raises one stat by 10% and lowers another by 10%. Some Natures affect the same stat, like Docile, and you end up with a net 0. Natures are a separate entity from IVs, and they cannot be changed. When breeding, a Pokemon holding an Everstone will pass on its Nature to the offspring.
Hope this helps some.
