• Berserker's Call
• Item Level 133Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
• Unique
• Trinket
• Requires Level 70
• Equip: Increases attack power by 90.
  Use: Increases attack power by 360 for 20 sec.
• Sell Price: 9 11 60

Source

This item drops from Zul'jin in Zul'Aman.

Patches and hotfixes

Patch 2.3.0 (13-Nov-2007): Added 

External links

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