• Ironaya's Discarded Mantle
• Item Level 219Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mail
• Shoulder
• 974 Armor
• +56 Agility
  +61 Stamina
  +44 Intellect
• Durability 85 / 85
• Requires Level 80
• Equip: Increases critical strike rating by 39.
  Equip: Improves haste rating by 45.
  Equip: Increases attack power by 158.
• Sell Price: 9 59 63

Source

This item drops from Auriaya in the 10-man version of Ulduar.

Patch changes

• Patch 3.1.0 (14-Apr-2009): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB