This intricate loop transforms a humble bounceland into an infinite engine by leveraging the mana and creature-copying potential built right into the setup. With Spelunking on the board to ensure lands enter untapped, playing Golgari Rot Farm triggers both its own self-bounce ability and Springheart Nantuko's landfall trigger (bestowed onto a creature, though the copy target here is fueled by our extra land drops). You tap the Rot Farm for black and green mana before it returns to your hand, providing the exact funds needed to pay for Springheart Nantuko's copy fee. Meanwhile, Wayward Swordtooth enables you to immediately replay the returned Golgari Rot Farm, letting you repeat this cycle to flood the board with infinite creature tokens, landfall triggers, and mana of any color the land can produce.