Call to Hunger

Whenever a creature with a -1/-1 counter on
it dies, exile that creature instead. If a creature was exiled this way, create a 2/2
black Zombie creature token with Wither.
{3}{b}{b}: Create a 2/2 black Zombie creature token with wither. Activate this ability only
once per turn, and only any time you could
cast a sorcery.