This will only work in a double battle.
Alakazam
Trait: Magic Guard
Nature:Modest (-Atk, +Sp atk)
252 def 126 spd 126 sp. def
Item: Ring target
role play(must be with a pokemon with klutz)
trick( switch item with annoying flying/metagross/bronzong)
toxic( poison on annoying metagross/bronzong)
psychic(DUH)
this will take some time to set up, so try to stay alive