Hunger and Rage. Two motives drive the succubus. She is continually hungry; desiring to eat the souls of humans more than anything else, though dwarves serve her in a pinch. Elves and the other fey she has little interest in, other than, of course, slaying them. They are driven by hate as well, for they know their race, spawned in the depths of the abyss, are failed and they long for what they are not, pure and whole. So they hate all things and the fact that they must disguise themselves to interact with other creatures drives their hate even further.