• Libram of Defiance
• Item Level 245Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Libram
• Relic
• Requires Level 80
• Equip: Each time you use your Hammer of The Righteous ability, you have a chance to gain 200 dodge rating for 18 sec.
• Sell Price: 6 87 63

Source

This item is sold by the following vendors for 25 :

•  Arcanist Asarina <Emblem of Triumph Quartermaster> in Icecrown
•  Arcanist Miluria <Emblem of Triumph Quartermaster> in Dalaran
•  Magistrix Iruvia <Emblem of Triumph Quartermaster> in Icecrown
•  Magistrix Vesara <Emblem of Triumph Quartermaster> in Dalaran

Patch changes

• Patch 3.2.0 (04-Aug-2009): Added. 
  

External links

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