This Vintage-legal engine uses Conduit of Worlds to bypass the usual limits on land drops by letting you continuously replay lands directly from your graveyard. Fastbond is the linchpin that makes this an explosive loop, lifting your per-turn land restriction so you can immediately redeploy whatever land you just lost. To keep Fastbond's life-loss tax from ending the game prematurely, Troubled Healer steps in to sacrifice that very same land and completely prevent the resulting damage, creating a self-sustaining cycle of land sacrifice and return.