Aghanim, Demon's Disguise

: Whenever a creature you control dies, put a loyalty counter on Aghanim, Demon's Disguise.
-X: Take control of target creature with power X until end of turn. It has haste.
-8: Sacrifice Aghanim, Demon's Disguise. Search your library or graveyard for a Ganon creature or planeswalker and put it onto the battlefield.