■ When this creature leaves the battle zone , choose one of your opponent 's creatures . That creature gets -3000 until the end of the turn . (A creature that has power 0 or less is destroyed .) Fushigiverse (You may put one of your creatures into your mana zone tapped to summon this creature from your graveyard for a cost equal to minus that creature 's cost . It can't cost less than .)