This loop hinges on Underworld Breach granting escape to your entire graveyard, turning your discard pile into a castable hand as long as you have enough fodder to exile. Malevolent Rumble fuels this engine by digging deep into your library, stuffing your graveyard with new resources while simultaneously dropping an Eldrazi Spawn token onto the battlefield. Thanks to Jaheira, Friend of the Forest, that token gains the crucial ability to tap for green mana, which easily pays for a portion of the escape cost before you sacrifice it for colorless mana. Meanwhile, Rising of the Day ensures your board state is ready for action by granting haste, rounding out a self-sustaining cycle of casting, milling, and generating infinite triggers.