The Genius Guide to the Death Knight
The death knight is a champion of the grave, serving to spread the power of death throughout the lands of the living. Most death knights are the chosen warriors of gods of undeath and decay, evil psychopaths who desire nothing more than to see the mistake of life replaced by the glorious, unchanging blessing of undeath. Though unquestionably evil, these death knights are often confused as to why anyone would wish to be alive, since life is a condition that leads to hunger, exhaustion, pain, and suffering. Undeath is the perfect state of existence, but even normal death is obviously better than struggling through a life. To these death knights, they are bringing a gift to all living creatures, even if they have to do it one murder at a time.
However, a very few gods of true death also empower death knights specifically to preserve the sanctity of the grave and oppose the forces of the undead. Though the gods of repose have many names in many cultures, the death knights often refer to their divine sponsors as the Grey Mistress and see her as a personification of the state of death itself. To these death knights death is a calm, cool mistress who eventually envelops all things, and undeath is an insult to her. Though such death knights have little care for the living, and are not of good alignment, they can sometimes serve as allies to life-loving champions who must oppose a powerful undead force. Though they see life as a lesser state of being than death, they also see it as a temporary one and know their Grey Mistress will eventually enwrap all living things in her pale embrace.