Bind to Hell

The targeted weapon shudders and momentarily emits a moaning chorus, like that of damned souls. This spell places an infernal blessing on the touched weapon for the specified duration. Upon casting the spell, you must name or describe a specific creature.
If that creature is subsequently reduced to 0 or fewer hit points by a blow from the target weapon before the spell's duration expires, its soul is whisked immediately to the Hall of the Vanquished in Stygia, where it remains forever, or until rescued.

A weapon can gain the effect of only one Bind to Hell spell at a time.

While the soul is in the Hall of the Vanquished, life-restoring spells and effects, such as raise dead, reincarnation, and resurrection, cannot be used to revive the creature.
If the soul form of a nonoutsider is removed from the hall, it transmigrates immediately to its proper afterlife, after which life-restoring effects again become possible.

Only casters who worship Levistus can cast this spell.
It has no effect for any other caster.