Merrak, The Returned

+1: Destroy target creature with power 4 or less, then that creatures owner creates a 0/4 Black Zombie creature token with defender.
+1: Return target creature card with power 4 or less from a graveyard to the battlefield under your control.
-X: Create a copy of Merrak, The Returned, except it's an X/X Black Shade creature token with flying and lifelink instead of a planeswalker.