[[Belial]]Azmodan, the Lord of LiesSin, is one of the seven Prime Evils. He's classified as one of the four Lesser Evils, along with [[AzmodanBelial]], [[Andariel]], and [[Duriel]]. (The Greater 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 are [[Diablo]]grew restless. Eventually, Belial, [[Mephisto]]the Lord of Lies, and [[Baal]]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.)

Azmodan and Belial's triumph was brief, for they fell back into war with each other as soon as they no longer had to cooperate against the Prime Evils. Azmodan's tactical acumen and overwhelming force allowed him to dominate the Civil War and defeat his rivals, including Belial.