• Rusted Gutgore Ripper
• Item Level 232Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Dagger
• One-Hand
  
• Speed 1.80
• 225 - 419 Damage
• (178.9 damage per second)
• Durability 75 / 75
• Requires Level 80
• Chance on hit: Sends a shadowy bolt at the enemy causing 360 Shadow damage and lowering all stats by 120 for 30 sec.
• 
• Sell Price: 22 17 96

Source

This item drops from Onyxia in the 10-man version of Onyxia's Lair.

Patch changes

• Patch 3.2.2 (2009-09-22): Added. 
  

External links

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