From the Shield of Isin Dule Quest, introduced during the Price of Loyalty event.
Shield of Isin Dule.
Shield of Isin Dule
Value: 23,000p 300 Burden Units
A shadowy shield with surprising strength. As you attempt to push your figher through the shadowy substance it becomes increasingly resistant to your push. Turn this into the Shadow Hunter if you would rather have an experience reward.
Special Properties : Magic Absorbing
Shield Level: 190
Your level must be at least 140 to wield this item
Casts the following spells: Aura of Deflection, Aura of Defense, Minor Impenetrability, Inferno's Bane, Brogard's Defiance, Astyrrian's Bane
Armor Level: 190
Slashing: Average (190)
Piercing: Excellent (342)
Bludgeoning: Excellent (342)
Fire:Average (152)
Cold: Unparalleled (380)
Acid: Average (190)
Electric:Average (152)
Activation Requirements: Melee Defense: 400
Spellcraft: 400
Mana: 2000
Mana Cost: 1 point per 40 seconds.
Notes
Can be turned in for experience at the shadow hunters of Wai Jhou