Rite of Belzenlok

(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 with flying, trample, and "At the beginning of your upkeep, sacrifice another creature. If you can't, this creature deals 6 damage to you."