Tenseiga (3.5e Equipment)
From D&D Wiki
This sword cannot be used against the living. When this sword is used against a Creature that is technically not alive, attacked Monster must make a Will Save equal to 10 + wielder's HD or higher or else be destroyed. If a creature was given unlife by a means of absorbing the souls of sacrifices it is destroyed by this weapon(no save). Once per day/2 Character levels, the user may attack a corpse, returning life to it with 1d6 HP as though affected by True Resurection. This ability cannot be used on a character that has already been resurected by the same ability before.