Thanos, the Mad Titan

+3: Thanos, the Mad Titan deals 4 damage to any target. Activate this ability only if you control at least one permanent of each color.
+1: Exile target creature until the next draw step. Each opponent skips their draw step next turn.
-12: Each opponent sacrifices half their nonland permanents, discards half their hand, and puts half of their library into their graveyard.