• Arcanum of Ferocity
• Item Level 70Disenchants into:
  Not disenchantable
• Binds when picked up
• Requires Level 70
• Requires Cenarion Expedition - Revered
• Use: Permanently adds 34 attack power and 16 hit rating to a head slot item. Does not stack with other enchantments for the selected equipment slot.
• 1 Charges

Arcanum of Ferocity is an Augment: Enchantment for a player's helm slot.

Source

Sold for 100 (before reputation discount) by  Fedryen Swiftspear <Cenarion Expedition Quartermaster> in Zangarmarsh when you reach revered with Cenarion Expedition.

Patch changes

/ Patch 3.0.2 (14-Oct-2008): Renamed "Arcanum" (was "Glyph") to not confuse with Inscription glyphs. 

External links

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