• Breeching Comet
• Item Level 125Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
  
• Axe
• One-Hand
  
• Speed 2.60
• 167 - 312 Damage
• (92.1 damage per second)
• +18 Agility
  +15 Stamina
• Yellow Socket
• Socket Bonus: +4 Attack Power
• Durability 105 / 105
• Requires Level 70
• Equip: Increases attack power by 40.
• 
• Sell Price: 12 45 70

Source

This item drops from Kael'thas Sunstrider in Magisters' Terrace.

Patches and hotfixes

Patch 2.4.0 (25-Mar-2008): Added 

External links

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