Undying

{b}: Target creature gets -1/-1 for each Zombie
on the battlefield.
{g}: Target creature gets +1/+1 for each Zombie
on the battlefield.
{3}{b}{g}{t}: Create a green black legendary
Artifact Enchantment named Tombstone
with "Create a 2/2 black Zombie creature
token at the beginning of each upkeep."
The dead hunger.