Magtheridon is a demonic pit lord and a villain in Warcraft. He is the quaternary antagonist in Warcraft 3: The Frozen Throne and the minor villain in World Of Warcraft : The Burning Crusade. He was the lord of Outland before Illidan showed up and took over his position. Magtheridon was later locked up in the Black Citadel where Illidan uses his blood to corrupt more orcs to turn into fel orcs. Although he is imprisoned, Magtheridon is still loyal to the Burning Legion. A group of adventurers entered the lair of the pit lord and freed him shortly before they killed him and took his head.