The first death knights were created when the souls of murdered warlocks were merged with the corpses of human knights, unable to fully utilize their host-bodies, they relied on their tremendous powers to reanimate the corpses of soldiers to do their dark wishes. This breed was decimated in battle and was replaced by the mindless minions of the Lich King, who were capable of melee combat as well as ranged spell casting.

The current Death Knight is the first hybrid hero class, buy WoW Death Knights able to tank with heavy plate armor, deal heavy damage with strong weaponry, and ministered by unholy powers