Decaying Harvesthand

Whenever Decaying Harvesthand deals damage
to a creature, put a decayed counter on that
creature. (A creature with decayed has "This
creature can't block" and "When this creature attacks,
sacrifice it at end of combat.")
Whenever an opponent sacrifices a nontoken
creature, create a 2/2 black Zombie creature
token with decayed.
On this dark, twisted night, it harvests you.