Sylvia is depicted as a ghost, possessing entirely bright green skin, inverted eyes, having black sclera and neon green pupils, hair and clothes. Her hair is short. She has black or dark steel colored prosthetic arms with sharp fingertips. Her lower face resembles that of a skull, yet she does still have lips. Sylvia seems to be rather sadistic or uncaring to all, except her creatures of scrap metal, and possibly Baba Yaga, however she is still willing to attempt to kill Yaga, despite their deal