This clever loop transforms The Sibsig Ceremony into a graveyard-recursion engine by leveraging its unique triggered ability: whenever you cast a creature and it enters, The Sibsig Ceremony immediately destroys it and leaves behind a 2/2 Zombie Druid token. This mandated destruction is the catalyst for Pitiless Plunderer, which rewards each creature's demise—including both Ebondeath, Dracolich and the resulting token—with a precious Treasure token. With the mana generated by sacrificing these Treasures to pay for Ebondeath, Dracolich recurring from your graveyard, Phantom Train steps in to cleanly sacrifice the Zombie Druid tokens to fuel its own ability and trigger further Treasure generation. Together, these interlocking pieces create a self-sustaining loop that continuously pumps out infinite deaths, enters-the-battlefield triggers, and a growing mountain of +1/+1 counters.