Surren, the Dark Avenger

+3: Zombies you control get +2/+1 until the end of turn.
-6: Destroy target creature. Put a 3/2 Black Zombie Horror Creature token onto the battlefield.
-12: Zombies you control get +3/+3 and gain undying until the end of turn. You gain X life, where X is the number of Zombies you control.