Rakdos Lizards floods the board with cheap aggressive one-drops like Hired Claw and Iridescent Vinelasher, making Day of Black Sun a strong scalable sweeper once several threats are down. Preacher of the Schism's 2/4 deathtouch body blocks profitably against their small lizards and stabilizes the race. Stock Up is too slow against their fast aggressive curve, and Archenemy's Charm is a lower-impact answer than a sweeper against a go-wide deck. Keep Bitter Triumph and Requiting Hex since they're efficient answers to their cheap threats.