Strixhaven Stadium - Strixhaven: School of Mages - 259

Artifact

Mana Cost: {3}

{T}: Add {C}. Put a point counter on this artifact.
Whenever a creature deals combat damage to you, remove a point counter from this artifact.
Whenever a creature you control deals combat damage to an opponent, put a point counter on this artifact. Then if it has ten or more point counters on it, remove them all and that player loses the game.

Rare · Strixhaven: School of Mages · #259 (STX)

Illustrated by Piotr Dura