• The Brokenhammer
• Item Level 251Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mace
• One-Hand
  
• Speed 1.70
• 244 - 454 Damage
• (205.3 damage per second)
• +42 Strength
  +92 Stamina
• Durability 105 / 105
• Requires Level 80
• Equip: Increases defense rating by 36.
  Equip: Increases your dodge rating by 44.
  Equip: Improves hit rating by 39.
• 
• Sell Price: 25 18 51

Source

This item drops from Lord Marrowgar in the 10-man version of Icecrown Citadel.

Patch changes

• Patch 3.3.0 (08-Dec-2009): Added. 
  

External links

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