In the books of sorrow there are three "protagonists". They all seem to represent a certain class. Savathun the cunning represents the warlocks. Xivu Arath represents the titans (He claims he is war itself) and Auryx (later known as Oryx himself) as the curious explorer of the three. Of these three one rules supreme over the others, which coincidentally is the one that represents the hunter, conclusion: Hunters reign supreme.