The Beaked Axe of Hurin (3d6) (+12,+15)
+2 strength, constitution. Slays trolls, dragons. *Slays* demons. Branded with acid. Provides resistance to acid, fire, dark. Cannot be harmed by acid, electricity, fire, cold.
When activated, it puts you in a berserker rage for d50+50 turns. Takes 81 to 160 turns to recharge.
Radius 1 light.
Min Level 20, Max Level 100, Generation chance 7, 18.0 lbs

(Angband 3.1.2v2)