Azure is mentioned in the first chronicles of the history of the Black Rose Coven. He's a dark magician elf, who was bent on reclaiming the mortal world for the magickal realm. His lust for power overcame him. He performed an ancient spell that would give him immortality and the ability to wield darker forces. But it also cursed him. It drained his life force and left behind a vampiric scarred body. It drove him insane.
He soon gathered a massive army of War-Thogs, led them to the edge of the Mist realm, and gave the order to attack the mortal world. But the Black Rose Coven, led by the first witch who was chosen to be the Goddess' sword maiden, intercepted the onslaught.
The battle went on for days and in the end Azure's army was defeated and 90% of the Black Rose witches were dead. Azure himself was imprisoned, bons with magickal markings on his shackles, to neutralize his magick. He was chained to his cell for eternity.
A thousand years later, he had escaped. How he did it, is unknown.