This loop locks down the game by chaining infinite extra turns, powered by the recursive synergy between Ethereal Forager and Temur Sabertooth. You cast Walk the Aeons to take an extra turn, letting it hit the graveyard so Ethereal Forager's delve ability can exile it to help pay for its casting cost. When Ethereal Forager attacks, its trigger pulls Walk the Aeons right back to your hand, while Temur Sabertooth provides the activation to rescue Ethereal Forager to your hand before combat ends—allowing the whole cycle to repeat indefinitely.