Rite of Belzenlok
Enchantment - Saga
(CMC 4)
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II -- Create two 0/1 black Cleric creature tokens.
III -- Create a 6/6 black Demon creature token with flying, trample, and "At the beginning of your upkeep, sacrifice another creature. If you can't, this creature deals 6 damage to you."