• Talon of Furious Concentration
• Item Level 69Disenchants into:
  [Nexus Crystal]: 1-2
• Binds when picked up
• Held In Off-hand
• +8 Intellect
  +8 Stamina
• Requires Level 60
• Equip: Increases spell power by 21.
  Equip: Increases your critical strike rating by 14.
• Sell Price: 8 87 87

The Talon of Furious Concentration is held in the off hand for offensive casters.

Source

Talon of Furious Concentration drops off Moam in the Ruins of Ahn'Qiraj.

Patches and hotfixes

Patch 1.9.0 (03-Jan-2006): Added 

External links

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