Lord Xavius was a powerful user of magic, and the high councilor to Queen Azshara in Warcraft. He was later turned into the first satyr by Sargeras, before ultimately being transformed into the dreaded Nightmare Lord. He takes on the role of the primary antagonist of the Val'Sharah questline in World Of Warcraft:Legion. He is the final boss of the Darkheart Thicket as his own shade, aswell as the final boss of The Emerald Nightmare, this time in his true severely twisted form.