World of Warcraft: Wrath of the Lich King Expansion Set - (Obsolete) Master the necromantic powers of the Death Knight - World of Warcraft's first Hero Class. An increase in the level cap to 80. Discover the harsh, icy continent of Northrend, the bleak heart of the Lich King's empire of undeath. Command mighty siege engines to bombard your enemies and lay waste to destructible buildings in your path. Let yor friends call shotgun as you storm Azeroth on War Mammoths, the Mekgineers chopper, and other multi-passenger mounts.