I have a level 100 Gengar that I moved to my recently-finished Black cartridge. I never paid attention to EVs in the past gen, but now I hear EVs take effect immediately rather than on level up, so I could theoretically re-ev train him.
How would I go about resetting his EVs to 0, given that I only have access to items in the fifth gen?
Best Answer
Feed him 11 Pomeg (lowering HP), Kelpsy (lowering Attack EV), Qualot (lowering Defense), Hondew (lowering Special Attack), Grepa (lowering Special Defense), and Tamato Berries (lowering Speed).
If a Pokémon has over 100 EVs in a stat, the EV-lowering berry will reduce it to 100 no matter how high it is, and after that, each berry will decrease the stat by 10 EVs after that. Because of this, feeding a Pokémon 11 of a stat decreasing berry will always result in 0 EVs in that stat.
This is assuming you can gain access to the EV berries. As far as I am aware, you can't find them in game yet. These berries are the only way you can decrease EVs.