A Society Ring of Endurance

From the Exploration Society Letters quest introduced in The Child of Daralet, upgraded in Waking from the Abyss.

Retired Version

A Society Ring of Endurance
Value: 1 15 Burden Units
Casts the following spells: Endurance Other II Activation Requirements: Arcane Lore: 15 Spellcraft: 150 Mana: 400 Mana Cost: 1 point per 40 seconds.