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Erasto is not exactly the viscous Kalona-halfbreed that he looks like. Whereas he enjoys his fun and games (and meat!), he is more of an intellectual who enjoys dwelling in ancient arts of Black Magic and Witchcraft. He loves to be challenged, even if it means experiencing several mistakes and near failure. His idea of fun is experimenting with random potions and spells, all of which are for unusual and disturbing things. He constantly puts on a facade of a "Witch Doctor", and lures wary victims to his little hut with the help of his bright lantern. Despite his unruly and alarming appearance, the oblivious patients are trustful of Erasto because he claims he can cure any illness with a potion or spell. Of course, said patient is lucky enough if they leave his dwelling with all of their limbs intact.
Erasto does eat meat, but most of his victims are used for spell components--AKA, eyeballs, tongues, hooves, intestines, and anything else his recipes call for. He is quite the charmer, and is attracted to both males and females. However, his wants never increase to anything more than a curious lust, and he's not one for needing physical pleasure. He rather admires a body for its potential taste or ability to provide ample spell components. However, if a victim turns out to be smarter than previously thought, Erasto might simply entertain them, or bargain their release with a tidbit of information or a rare piece of jewelry or such.
Erasto sleeps well into the afternoon and is not a morning person. He works well into the late night, wandering around the area beyond his hut, trying to attract potential victims.
He wears his mask in almost all of his transitions, and only takes it off to sleep and during important spells. He will also reveal his face to certain horses, either because he feels that they're worthy or because he feels like creeping them out with his eyes. He found the skull buried in the swamp muds, and thinks that it's from some ancient magical beast that will protect him from others' curses.