The Morning Star 'Firestar' (2d6) (+15,+17) [+2]
Branded with flames. Provides immunity to fire. Cannot be harmed by acid, electricity, fire, cold.
When aimed, it creates a fire ball with damage 72. Takes 20 turns to recharge.
Min Level 20, Max Level 100, Generation chance 7, 15.0 lbs

(Angband 3.1.2v2)