Dark knight is the class of Garithos in Frozen Throne. The class had various other Hero abilities, and had high and low agility. It is not known if other Dark Knight exists and it may simply be a unique title of Garithos.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
They may be knights of a darker variety and questionable morality, almost the antithesis to paladins.