Marcie's ability allows her body to adapt almost instantly in several situations, and she can use this to aid her in a fight or simply to survive. This ability will almost react instantly when Marcie's body is threatened in any way. Her body will automatically adapt to help her, by changing physically. This may allow her to alter her appearance, if necessary, as well as gaining additional physical features such as wings or additional limbs. It also allows her to increase her strength in a certain situations, as well as maintaining optimum health. Marcie can also choose a physical feature she wishes to gain, but her body will usually react to the situation in hand and know what it has to do in order to stay alive.