■ Gravity Zero : If your opponent has 5 or more cards in their graveyard , you may summon this creature for no cost . Blocker (Whenever an opponent 's creature attacks , you may tap this creature to stop the attack . Then the 2 creatures battle .)

■ This creature can't attack .

■ When you put this creature into the battle zone , each player shuffles all cards in their graveyard into their deck .