Azmodan, the Lord of Sin, is one of the seven Prime Evils. He's classified as one of the four Lesser Evils, along with [[Belial]], [[Andariel]], and [[Duriel]]. During the Eternal Conflict Azmodan won many battles against the High Heavens, and gained renown as the most capable battlefield commander of all the Lords of Hell; his ability to surpass Baal was only due to the latter's volatile nature and brashness in war.  As the Prime Evils turned their attention to the mortal world of Sanctuary, the Lesser Evils grew restless. Eventually, Belial, the Lord of Lies, manipulated Azmodan into leading a revolt against the Prime Evils. Azmodan is best known for events during the Sin Wars, when his alliance with Belial gave their combined demonic armies enough strength to defeat and banish the three Prime Evils into the mortal realm. (There is some speculation that the Prime Evils engineered their own exile and subsequent capture by the Soul Stones as an elaborate plot to ultimately gain more power.)