This ingenious loop turns Underworld Breach into an engine for relentless recursive casting, fueled by Underworld Breach itself granting escape to everything in your graveyard. You feed this engine using Malevolent Rumble, which digs deep into your library to stock your graveyard while generating an Eldrazi Spawn token to kickstart the mana. To keep the chain going, Citanul Hierophants turns your board into mana producers so you can tap that token for green mana before sacrificing it, while Samut, Voice of Dissent stands ready to untap your key pieces or grant the crucial haste needed to tie the loop together. Together, they create a self-sustaining cycle of sacrifice and escape that buries your opponents under a mountain of value.