Most Lesaires think of him as a myth, as something that is so terrible that it simply cant exist. They tell stories about him to scare their children to behave.
He is a cannibal, a mass murderer and also a holy worrior of the Cult "Light and Fire". As The mightiest priestess of the cult died, she gave Agoz all her magic power, which makes him one of the most powerfull Lesaires there is that even the gods are afraid of, which is why his magic has been restrained with collars not even gods can break.
His only purpose is to serve the gods of light and fire and kill those of the false believ.
He only acts aggressive towards Lesaire but is friendly to all other beings, specially children because they are the purest form of light in his eyes.