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I've read here that NPC trainers' Pokemon do have natures (from Gen III onward) and IV's, and I've seen it mentioned in a few places that at least the Elite Four's Pokemon have EV's as well, but I've found no exact or even, seemingly, certain information on the subject. Basically, are NPC trainers' Pokemon's natures, IV's, and EV's randomly generated, or, if they aren't, what are they? I'm most interested in information pertaining to Emerald, but any such information pertaining to any of the other games would also be very much appreciated.
Also, please cite your sources (or l33t hax0r credentials as the case may be).

asked by
I remember reading in an answer to a different question that Gym Leaders are 20 or 25 across the board I think.  E4 is higher.  Don't know how much.  I would also assume that certain prominent NPCs also get Pokemon with specific Natures, IVs, and maybe even EVs, but I don't know about that.
The IVs and natures are set, but they're probably set at random.
This question asks about EVs and IVs instead of EVs and natures. I'm pretty sure that that's different enough for this to not be considered a dupe.
As above I'm fine with this also.
sumwun raves on about people commenting on old posts, yet here he is...
At least I my comments add new information.

1 Answer

0 votes

The IVs and Natures are randomly determined, and the only EV trained Pokemon are the Elite 4 and the Pokémon in the PWT in Black/White 2.

Cynthia's Garchomp, however, has perfect 31/31/31/31/31/31 IVs in Platinum. So... Yeah.

Source: Experience and Bulbapedia

answered by
How could you know this about hidden in-game mechanics through mere experience? It'd help to reference the Bulbapedia article that contains this information, because as it stands this answer doesn't sound very credible.
I used a cheat to capture other trainers Pokémon and then used Showdown! and Serebii to determine the IVs and Nature. Hidden Power dude helped me a lot!
Cynthia's bullsh*t 6iv Garchomp wtf I want a 6iv garchomp

Does it have EVs too?
252 EVs in accuracy, crit chance, and flinch, but only when using Dragon Rush at the worst possible moment for you.
Also 510 EVs in hax.