Zol, the Eternal Night

+2: Destroy target creature you control, then make a token that is a copy of it except it is a black zombie in addition to its other types.
-X: Destroy target creature with converted manacost X and make a black zombie creature token with the destroyed creatures power and toughness.
-11: Return all creatures from your graveyard to the battlefield, except they are black zombies in addition to their other types.