• High Warlord's Crossbow
• Item Level 78Disenchants into:
  [Nexus Crystal]: 1-2
• Binds when picked up
  
• Crossbow
• Ranged
  
• Speed 2.9
• 129 - 195 Damage
• (55.86 damage per second)
• +7 Stamina
• Durability 90 / 90
• Requires Level 60
• Equip: Increases ranged attack power by 36.
• 
• Vendor 13000

Source

The crossbow is purchased from  Stone Guard Zarg <Weapons Quartermaster> in Hall of Legends, Orgrimmar for 13000 .

Patch changes

• Patch 3.3.3 (2010-03-23): Items which previously required Marks of Honor have had their costs adjusted to remove these requirements. 
  
• / Patch 2.0.1 (05-Dec-2006): PvP Rank requirement removed. Now purchased with Honor and battleground marks. 
  
• Patch 1.6.0 (12-Jul-2005): Updated with improved statistics and new unique art. 
  
• Patch 1.4.0 (2005-05-05): Added. 
  

External links

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