>>19154175Weepinbell/Arbok hordes give like 2 Attack EVs each, resulting in 60 per battle if you have Pokerus and Power item for Attack. Wingull hordes give 50 speed, Vanillite give 50 SpA, Hoppips give 50 SpD, Gulpin give 50 HP and Durant give 60 Def. It's a initial big investment to get all the Power Items, but once you do all you need is Pokerus, a Sweet Scent user (guarantees a horde encounter), an AoE attacker and the Exp Share turned on. EVs are also capped at 252 so no need to worry about the whole 255 wasting 3EVs thing.