Clara Nightwing is physically powerful, to a superhuman level. Even from birth Clara was gifted with above normal muscle strength and has displayed this superior ability to do physical tasks every time she was belittled by anyone. Her strength is not only superhuman naurally but has been trained by years of training Chuusei Kentou, because of this her already impressive strength became something truly frightening. Being claimed as the strongest strength a girl ever manifested in the history of that school, and the strongest rookie of Chuusei Kentou when she started.