Disrupting Weapon

transmutation

Level: cleric 5
Casting Time: 1 standard action
Components: V, S
Range: touch
Targets: one melee weapon
Duration: 1 round/level
Saving Throw: Will negates (harmless, object); see text
Spell Resistance: yes (harmless, object)

This spell makes a melee weapon deadly to undead. Any undead creature with HD equal to or less than your caster level must succeed on a Will save or be destroyed utterly if struck in combat with this weapon. Spell resistance does not apply against the destruction effect.