Bone Mask

{4} · Artifact

{2}, {T}: The next time a source of your choice would deal damage to you this turn, prevent that damage. Exile cards from the top of your library equal to the damage prevented this way.

Motor: se resuelve a mano

Rulings (1)

If you do not have enough cards in your library, the damage is still prevented and all the cards in your library are exiled.
Wizards of the Coast · 2004-10-04