Frostwolf Battle Standard

The Frostwolf Battle Standard is the rallying flag of the Frostwolf Clan in Alterac Valley. When the flag is planted in the ground, all party members within 45 yards will have increased damage by 10% for up to 2 minutes.

Source
This item can be bought from:
 * Grunnda Wolfheart in Frostwolf Keep in Alterac Valley
 * Jorek Ironside outside the entrance to Alterac Valley in the Alterac Mountains

This item costs.