The Tirisgarde was a group of magi created by the Council of Tirisfal after Aegwynn refused to relinquish her position as Guardian of Tirisfal. Members were trained in the art of magic and how to use relics and armaments that would diminish Aegwynn's power.
Though they hunted her, they were never able to capture Aegwynn. Despite discovering her tower of Karazhan, she slipped through their fingers, disappearing into the shattered city of Suramar. In World of Warcraft: Legion, Tirisgarde is reformed by Meryl Felstorm, and serves as an union of all Azeroth's mages.