Madame Vazilashj Das'truvas was once a distinguished Highborne magus from the fallen city of Zin-Azshari who led a life marked by military prowess and scholarly pursuit. After being injured in battle, she transitioned to safeguarding Queen Azshara’s arcane secrets with the Shen'dralar of Eldre’thalas. Despite a monotonous period of study and isolation following the Sundering, she grew fascinated by demons and conducted cruel experiments on them. Following the fall of Eldre’thalas and subsequent years of wandering, Vazilashj settled in Darnassus, where she adapted to a new life and aided the Grand Alliance in its military efforts.

https://moon-guard.fandom.com/wiki/Vazilashj_Das%27truvas - https://worldofwarcraft.blizzard.com/en-us/character/us/moon-guard/vazilashj