Aetherbound Behemoth

Flying
Whenever Aetherbound Behemoth deals combat damage to a player, that player mills X, where X
is the number of creatures you control.
Whenever a creature card is put into an
opponent's graveyard from anywhere, you may
pay {2}. If you do, return Aetherbound Behemoth
from your graveyard to the battlefield tapped.
Born from the depths of forgotten sorrows, the Aetherbound Behemoth feeds on the essence of lost hopes and shattered dreams.