Xetzirbor

Xetzirbor was a mind flayer during or after the Rage of Demons.

History
During the Rage of Demons Cyrog's elder brain, also named Cyrog, died and was risen as undead by demon lord Orcus. Xetzirbor before or during this event went to Gravenhollow to found a system to save the dying elder brain.

Appearances

 * Out of the Abyss