《Amulet of Quoz》
Remove Amulet of Quoz from your deck before playing if you are not playing for ante.
,: Sacrifice Amulet of Quoz. Flip a coin; target opponent calls heads or tails while coin is in the air. If the flip ends up in your favor, that opponent loses the game. Otherwise, you lose the game.
Effects that prevent or redirect damage cannot be used to prevent this loss of life. Use this ability only during your upkeep. The opponent may ante an additional card to counter this effect.