Name: Ravenous Demon
Type: Creature — Demon
Rules Text: Sacrifice a Human: Transform Ravenous Demon. Activate this ability only any time you could cast a sorcery.
Set/Rarity: Dark Ascension Rare
Name: Archdemon of Greed
Types: Creature — Demon
Card Text: Flying, trample
At the beginning of your upkeep, sacrifice a Human. If you can't, tap Archdemon of Greed and it deals 9 damage to you.