• Muddied Boots of Brill
• Item Level 219Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mail
• Feet
• 893 Armor
• +79 Agility
  +60 Stamina
  +41 Intellect
• Durability 70 / 70
• Requires Level 80
• Equip: Improves critical strike rating by 42.
  Equip: Improves haste rating by 41.
  Equip: Increases attack power by 120.
• Sell Price: 9 56 44

Source

This item drops from Falric in Halls of Reflection.

Patch changes

• Patch 3.3.0 (08-Dec-2009): Added. 
  

External links

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