Viam Inferni

You may cast Viam Inferni from your graveyard.
When Viam Inferni enters the battlefield, if you
didn't cast from your graveyard, return it to your
hand.
Whenever a nontoken creature is put into your
graveyard from the battlefield create a 2/2 black
Zombie creature token.
When a creature is put into an opponent's
graveyard from the battlefield, sacrifice Viam
Inferni.