The Cloak 'Colluin' [1,+15]
It provides resistance to acid, lightning, fire, cold, and poison. It activates for resistance (20+d20 turns) every 111 turns. It cannot be harmed by the elements.
Level 5, Rarity 45, 1.0 lbs, 50000 AU

(NPPangband 0.5.0-WIP8a)