This clever loop turns the graveyard into a bustling workshop, fueled by The Sibsig Ceremony making creature spells cheaper so you can cast Ebondeath, Dracolich directly from your graveyard for just {B}{B}. As soon as Ebondeath enters the battlefield, The Sibsig Ceremony immediately destroys it and replaces it with a 2/2 Zombie Druid token, which in turn triggers Pitiless Plunderer to reward each creature death with a pair of Treasure tokens (doubled by Exalted Sunborn's token-doubling replacement effect). Sacrificing those Treasures refunds the exact black mana needed to cast Ebondeath all over again, creating an endless cycle of rebirth, destruction, and profit.