Northrend Badges

The Northrend Badges used to be rewards from Timear in Dalaran for completing the daily dungeon quest. The daily dungeon quest was eventually removed. The commendations were then moved to vendors.

•  [Argent Crusade Commendation Badge]
•  [Ebon Blade Commendation Badge]
•  [Kirin Tor Commendation Badge]
•  [Sons of Hodir Commendation Badge]
•  [Wyrmrest Commendation Badge]

Notably missing is Kalu'ak. If you wish to gain reputation with them, you must do their daily quests.

Vendors

This item is sold for 16 from:

•  Arcanist Miluria <Legacy Justice Quartermaster> in Silver Enclave^{[38.9, 53.1]}
•  Magistrix Vesara <Legacy Justice Quartermaster> in Sunreaver's Sanctuary^{[65.5, 23.8]}
•  Arcanist Asarina <Legacy Justice Quartermaster> in Argent Tournament Grounds^{[75.3, 21.5]}
•  Aspirant Naradiel <Legacy Justice Quartermaster> in Argent Tournament Grounds^{[75.3, 22.1]}

Players who completed Northrend and moved on to Cataclysm will find it quite affordable to achieve exalted with the 5 Northrend factions once they are powerful enough to conquer heroic dungeons (which award many Justice Points).

6000+12000+21000 = 39000 reputation is required to get from Friendly to Exalted. 39000/520 = 75 commendations. 75*16 = 1200 Justice Points. 1200/70 = a little over 17 heroic bosses.

Patch changes

• Patch 6.0.2 (2014-10-14): Removed.
  
• Patch 4.0.1 (2010-10-12): Cost changed from 1 to 16 .
  
• Patch 3.3.0 (2009-12-08): No longer a reward, but sold by vendors. Reputation increased from 250 to 520.
  
• Patch 3.0.3 (2008-11-04): Added.