Amulet of Quoz

Artifact

Remove this card from your deck before playing if you're not playing for ante. {T}, Sacrifice this artifact: Target opponent may ante the top card of their library. If they don't, you flip a coin. If you win the flip, that player loses the game. If you lose the flip, you lose the game. Activate only during your upkeep.

First printed June 3, 1995 in Ice Age