Meggan can alter her form at will and can assume the form of any creature, even those who only exist in legends. Initially, she changed forms unconsciously. As a newborn infant, she instinctively adopted a fur-covered, somewhat animal-like form in response to the cold weather around her. Her empathic powers made her vulnerable to the superstitions of her people and their fear of her powers caused her to shapeshift into an increasingly hideous form. It was not until she began adventuring with Captain Britain and working with psychic Alison Double that she came to understand the extent of her powers. Currently, Meggan's usual form is a blond woman with pointed ears (some texts indicate that this form is based, subconsciously, on Captain Britain's expectations). It took several more years, however, for Meggan to discover her natural form: taller than a normal human, with longer platinum blond hair, pointed ears, and black eyes.