By utilizing Teleportation Circle to continuously blink our clone at the end of each turn, we can repeatedly reset a legendary creature that would otherwise be locked out of its massive payoff. When Sakashima the Impostor enters the battlefield as a copy of The Legend of Kuruk // Avatar Kuruk, it retains the original's game-breaking Exhaust ability to pay twenty mana—heavily discounted by tapping your other artifacts and creatures—and instantly seize an extra turn. Because Teleportation Circle exiles and returns Sakashima the Impostor fresh on every single end step, you can have it enter anew as Avatar Kuruk to endlessly loop your extra turns.