Since we're answering a lot of EV questions, I just want to see if anyone has any idea on this:
In other words, how does EV priority work? Even if you faint a pokemon who gives 1 Atk and 1 Sp. Atk, and you have 509 EVs total, which stat gets the EV?
While EV training, if you have 506 total EVs, equip a power item to a pokemon, and defeat a pokemon worth 1 EV in any stat, what happens? Does the power item give you 3 EVs to max out your EVs, does it give 4 and ignore the 1 EV from the pokemon, or does it give none?
In other words, how does EV priority work? Even if you faint a pokemon who gives 1 Atk and 1 Sp. Atk, and you have 509 EVs total, which stat gets the EV?