The Iron Helm 'Holhenneth' [5,+10]
It increases your intelligence and wisdom by 2. It increases your searching by 2. It provides resistance to blindness and confusion. It grants you the ability to see invisible things. It activates for detection every 55+d55 turns. It cannot be harmed by the elements.
Level 20, Rarity 8, 7.5 lbs, 100000 AU

(NPPangband 0.5.0-WIP8a)