Nicol Bolas

Brother of Tiamat and Bahmut Nicol Bolas was one of the three first dragons. He spent many of his early days theorizing about the creation of further life, and how to mimic what the Primordial Family did. He was the first Diety to create lesser lifeforms once the world of Diaga was created. Bolas with help from Stronimus created the Elves.
Bolas was also the cause of the First War when his experiments with Ashbry broke the continuity of life and death. During the war he would rule from AmonKet 
Bolas would be banished to the prison planeZalar after being defeated in the First War.