Amulet of Quoz
Remove Amulet of Quoz from your deck before playing if you're not playing for ante. {T}, Sacrifice Amulet of Quoz: 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.
Artifact
standard:
not legal
future:
not legal
historic:
not legal
gladiator:
not legal
pioneer:
not legal
explorer:
not legal
modern:
not legal
legacy:
banned
pauper:
not legal
vintage:
banned
penny:
not legal
commander:
banned
oathbreaker:
banned
brawl:
not legal
historicbrawl:
not legal
alchemy:
not legal
paupercommander:
not legal
duel:
banned
oldschool:
not legal
premodern:
banned
predh:
banned
High - Low
