The Quarterstaff 'Nar-i-vagil' (1d9) (+10,+20)
It increases your intelligence by 3. It slays animals. It is branded with fire. It provides resistance to fire. It cannot be harmed by the elements. It gives you one attack per turn.
Level 20, Rarity 18, 15.0 lbs, 70000 AU

(NPPangband 0.5.0-WIP8a)