Anub'arak

Anub'arak was the last king of the nerubian empire of Azjol-Nerub. He was among the nerubians slaughtered in the War of the Spider and later raised by Ner'zhul the Lich King as an undead crypt lord to do his bidding. When the Lich King began losing his powers, Anub'arak assisted Arthas Menethil in reaching Icecrown before Illidan Stormrage's forces. For years, the undead nerubian continued carrying out his master's will in the ruins of his former kingdom until he was slain by adventurers. He was later raised once more and relocated to the caverns below Icecrown to plague the Argent Tournament, but the so-called traitor king met his final end at the hands of adventurers partaking in the tournament.