Boarded Window - Innistrad: Crimson Vow - 253

Artifact

Mana Cost: {3}

Creatures attacking you get -1/-0.
At the beginning of each end step, if you were dealt 4 or more damage this turn, exile this artifact.

Uncommon · Innistrad: Crimson Vow · #253 (VOW)

Illustrated by Zoltan Boros