• The General's Heart
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
• Unique
• Trinket
• Requires Level 80
• Equip: Increases your dodge rating by 107.
  Equip: When struck in combat has a chance of shielding you in a protective barrier which will reduce damage from each attack by 205. Lasts 10 secs.
• Sell Price: 11 39 40

Source

This item drops from General Vezax 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