This clever endgame sequence bypasses the usual seven-card wait for Approach of the Second Sun by treating your library like a revolving door. Tidal Barracuda is the linchpin of the strategy, letting you cast your spells during an opponent's end step while silencing any opposing interaction on your own turn. By targeting that initial casting with Sudden Setback, you intercept the spell before it can resolve and bury itself seven cards deep, placing it precisely on top of your library instead. All that remains is to draw it during your draw step and cast it once more to instantly claim victory.