• Unrelenting Blade
• Item Level 183Disenchants into:
  [Dream Shard]: 1 (99.5%)
  [Abyss Crystal]: 1 (0.5%)
• Binds when equipped
  
• Dagger
• One-Hand
  
• Speed 1.50
• 140 - 211 Damage
• (117.0 damage per second)
• Durability 65 / 65
• Requires Level 77
• Equip: Improves haste rating by 47.
  Equip: Increases attack power by 46.
• 
• Sell Price: 14 6 30

Source

This item is a random drop in the Halls of Stone instance on normal mode.

External links

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