Enyo

Enyo was a level 50 mage trainer located in the Valley of Spirits in the orcish city of Orgrimmar, standing near Deino and Pephredo. She was removed in patch 4.0.3a.

Trivia
Her name, and the ones of the other two mage trainers, are taken from the Graeae] of the Greek Mythology, Deino, Enyo and Pemphredo, meaning respectively "dread", "horror" and "alarm".