This clever loop is ignited by Dracogenesis, whose spectacular ability allows you to cast Dragon spells without paying their mana costs—transforming Ebondeath, Dracolich into a completely free cast directly from your graveyard. Once Ebondeath enters the battlefield, you feed it directly into Spawning Pit, converting the Dracolich into a charge counter and sending it back to the graveyard. Because Ebondeath's death sets up its own condition to be cast from the graveyard again for zero mana, you can immediately repeat this cycle to generate an endless cascade of sacrifices and death triggers.