World with Warcraft's latest class is a Death Knight. Death Knights were unveiled with the Wrath of the Lich Full expansion, and are regarded as a hero class. … Frost: these kinds of skills are used for control, and include strong, critical-hit and bonus-damage talents. There are also a lot of talents that improve force of real damage dealt next to enemies. Unholy:this talent woods mainly focuses on diseases and minion summoning. …