The Augmented Chain Mail of Caspanion (-2) [16,+20]
+3 to INT, WIS, CON
Resist Acid, Poison, Confusion
Additional Resistance
Activates for door and trap destruction every 10 turns
Level 25, Rarity 9, 27.0 lbs, 40000 Gold

(Hengband 1.6.0)