Inarius also served under him and tried to make him see the futility of the conflict, but Tyrael would not be swayed.
Izual served as Tyrael's lieutenant during the aeons of war, but was captured by Hell during an assault on the Hellforge. Imperius carried out his own form of justice regardless. The Lord of Terror was captured, with Tyrael and Auriel pointing out that holding him captive would serve their cause better than slaying the demon outright, knowing that he would return. One such example was in battle against demon forces led by Diablo himself. However, he often came to verbal blows with Imperius, who while also a valorous warrior, suffered from pride. Off the battlefield, he administered the Courts of Justice.
Originally the Archangel of Justice, his exploits in battle became the stuff of legend. The Great Conflict was fought for time immemorial, and Tyrael was no exception in regards to waging it.