By leaning on Deadbridge Chant's upkeep trigger, you can guarantee that the only card left in your graveyard is the one you need, transforming a random selection into a deterministic engine. Tormod's Cryptkeeper acts as the necessary janitor for this loop, letting you cleanly clear away any graveyard clutter at a moment's notice by tapping and sacrificing it so that the Chant's random selection always hits the exact spell you want. This lets you endlessly recur and cast Time Warp every single turn, completely locking opponents out of the game by taking infinite consecutive turns.