Insatiable Hunger

At the beginning of each player's upkeep, if that player controls a Zombie, that player sacrifices a non-Zombie creature. If they
can't, they lose 2 life.
'twas a pleasant day in the fall of 20 18 that the
Age of Zombies began. Brain containers gathered for their silly love ritual at a lovely church near Oss. It would prove their last.