Since he was born, Zusk can handle the magic of the bone , the blood, the curses and the dark magic even if he's a pegasus. he was always feared and the little peoples who knew about his power were cursed by Zusk to became unconscious for life . but all the people feared him, proclamed that he was a dark wizard, like a witch but male. After many years being in the dark hallways of Canterlot he decide to move on in a quieter place. the nearest little town was… Ponyville. Zusk wasn't mean but he feared that if somepony discover that he's a necromancer who can reanimated the dead and being a potential danger for Equestria , he could be bannished from Equestria and never find out what's a friend aside the minion he reanimated.