Zaizu, Undead

+3: Sacrifice a Creature you control. Add 1 Black Mana to your Mana Pool.
+1: Sacrifice a Creature you control. Place down 1 2/2 Black Zombie Token onto the battle field.
-10: Sacrifice highest cost Creature. Place down X 2/2 Black Zombie Token onto the battle field tapped. X being the mana cost of sacrificed. Creature