One of the characters inside the World of Warcraft that is part of the hero class is a Death Knight. According to the rich legend of WoW, this class used to serve the Lich King Arthas but they were able to liberate themselves later on. When they went back to their own group they brought along their new power and abilities. However a Death Knight class can only be generated when a player reach character level 55. They are most often are use when tanking. Employing them successfully is the main focus of techniques and tips of the various Death Knight Tanking Guides available in the market presently.