Holy Crossbow:
Any bolt fired from this magic crossbow is blessed with holy power. It deals +2d6 points of bonus holy
damage against any creature with the evil
allegiance and bestows one negative
level on any such creature that attempts to wield it. The negative
level remains for as long as the
weapon is in hand and disappears when the
weapon is no longer wielded. This negative
level never results in actual
level loss, but it cannot be overcome in any way (including
restoration spells) while the
weapon is wielded.