• Arcanum of Vicious Intellect
• Item Level 85Disenchants into:
  Not disenchantable
• Binds when picked up
• Requires Level 85
• Use: Permanently adds 60 Intellect and 35 resilience rating to a head slot item.
  
  Enchanting the item causes it to become soulbound.
• Sell Price: 37 50

Source

This item can be purchased from the following vendors.

•  Blood Guard Zar'shi in Orgrimmar for 1,000 .
•  Knight-Lieutenant T'Maire Sydes in Stormwind City for 1,000 .
•  Pogg in Tol Barad Peninsula for 40 .
•  Quartermaster Brazie in Tol Barad Peninsula for 40 .

Patch changes

• Patch 4.0.6 (8-Feb-2011): Added 
  

External links

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