The Knight of the Blue Moon is a special prestige class of Waterdeep. Knights of the Blue Moon draw upon the influence that the moon has over the Weave, their offensive and defensive skills changing in response to the waxing and waning of Selûne. The Knights of the Blue Moon call upon both arcane and divine magic. Individuals with sorcerous skill are favoured due to the matter with which the Knights cast their spells, though bards are also found among their numbers.