The Lochaber Axe 'Mundwine' (3d8) (+12,+17)
It slays animals, demons, and all evil creatures. It provides resistance to acid, lightning, fire, and cold. It cannot be harmed by the elements. It gives you one attack per turn.
Level 30, Rarity 8, 25.0 lbs, 30000 AU

(NPPangband 0.5.0-WIP8a)