The Dung Eater, Curse Giver

Persist, Menace
Whenever you destroy one or more of your opponent's creatures, add {b}.
Whenever a creature an opponent controls dies, create a black Seebed Curse enchantment aura curse token attached to them that say, "At the beginning of enchanted player's upkeep, they lose
one life."
If Order is defiled entirely, defilement is defilement no more, and for every curse, a cursed blessing.