• Undercity Banner
• Item Level 1Disenchants into:
  Not disenchantable
• Binds when picked up
• Use: Right Click to plant your Undercity banner.
• Cooldown: 3 minutes
• Vendor 15

Source

This item is sold by  Eliza Killian <Undercity Quartermaster> at the Argent Tournament Grounds in Icecrown for 15 .

Patch changes

• Patch 3.1.0 (14-Apr-2009): Added. 
  

External links

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