The Fallen Angel
Tyrael tells you that there is a dark, tortured soul who was trapped within this forsaken realm long ago. He was called Izual by mortal men, and in ages past he was his most trusted Lieutenant. Yet against Tyrael's wishes he led an ill-fated assault upon the fiery Hellforge itself.
Despite his valor and strength, Izual was captured by the Prime Evils and twisted by their perverse power. They forced him to betray his own kind and give up Heaven's most guarded secrets. He became a corrupt shadow of his former self; a fallen angel trusted neither by Heaven nor Hell.
For his transgressions, Izual's spirit was bound within the form of a terrible creature which was summoned from the Abyss. His maddened spirit has resided within that tortured husk for many ages now.
Find Izual and release him from his cruel imprisonment. Put an end to his guilt and suffering.
Given By Tyrael
Tip: Search The Plains of Despair.