Kicker (You may pay an additional as you cast this spell.)

Destroy target nonblack creature. It can't be regenerated. If this spell was kicked, Agonizing Demise deals damage equal to that creature's power to the creature's controller.

Enchant creature

When enchanted creature dies, return that card to the battlefield under your control.

When Fool's Demise is put into a graveyard from the battlefield, return Fool's Demise to its owner's hand.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

All creatures get -2/-2 until end of turn. If you have the city's blessing, instead only creatures your opponents control get -2/-2 until end of turn.

Destroy target legendary creature.

Flying

Taborax, Hope's Demise has lifelink as long as it has five or more +1/+1 counters on it.

Whenever another nontoken creature you control dies, put a +1/+1 counter on Taborax. If that creature was a Cleric, you may draw a card. If you do, you lose 1 life.