• Belt of the Fallen Wyrm
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mail
• Waist
• 739 Armor
• +73 Stamina
  +60 Intellect
• Durability 50 / 50
• Requires Level 80
• Equip: Improves critical strike rating by 49.
  Equip: Improves haste rating by 62.
  Equip: Increases spell power by 99.
• 
• Sell Price: 6 68 41

Source

This item drops from Razorscale in the 25-man version of Ulduar.

Patch changes

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

External links

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