Lucifer was the leader of the Doomguard attack force of the burning legion in the first attack by the dark lord Sargeras. With his original master long gone, Lucifer grants his undying loyalty to the Scourge to finish what his lord once started. Devouring the insignificant for his greed while dissipating the souls of those brave and strong enough to withstand his strength and the heat of his fiery haven of burning earth, Lucifer takes no prisoners and makes sure those who persevere through his wrath die by the agonizing and burning pain of Doom itself.
Swallows an enemy unit for a short period of time, digesting it and dealing minor damage. Each level decreases the cooldown and mana cost and gives bonus gold when the devoured unit is killed.