• Grand Marshal's Swiftblade
• Item Level 78Disenchants into:
  [Nexus Crystal]: 1-2
• Binds when picked up
  
• Sword
• One-Hand
  
• Speed 1.80
• 85 - 129 Damage
• (59.4 damage per second)
• +7 Stamina
• Durability 105 / 105
• Requires Level 60
• Equip: Increases your critical strike rating by 14.
  Equip: Increases attack power by 28.
• 
• Vendor 13000

Grand Marshal's Swiftblade is a one-hand sword that can be purchased as a reward from PvP.

Source

The sword is purchased from Lieutenant Jackspring, Weapons Quartermaster in Champions' Hall, Stormwind City 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 1.11.0 (20-Jun-2006): Added. 
  

External links

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