This elegant loop turns the cosmos inside out by repeatedly refreshing a powerful once-per-game ability. As you cast spells and work your way through The Legend of Kuruk // Avatar Kuruk, you accumulate a board full of Spirit tokens to help fuel its costly Exhaust ability. Once transformed, Avatar Kuruk's waterbending lets you pay twenty mana—heavily discounted by tapping your assembled artifacts and creatures—to take an extra turn after this one. At the end of that turn, Don & Leo, Problem Solvers steps in to blink your copy of the Avatar, and when Sakashima the Impostor re-enters the battlefield, it resets its once-per-game restriction by choosing to enter as a fresh copy of Avatar Kuruk.