I have completed sapphire and I am still playing because my friends and I trade and battle. I am using MyBoy on android to play. I have a question, to which I haven't found a solution online yet.
I have Swablu(Macho brace) and Rayquaza(Mental herb). My swablu is quite weak so I put it as my first Pokémon and then switch out when the battle starts to gain exp.
I know you only get EVs by battling, but will my EVs be doubled if RayQ kills the wild Pokemon ?