Muzan is the most powerful demon, and he’s the king of all demons. Muzan is 1000+ years old and Muzan’s goal is to conquer the sun and be immune to sunlight, so it could be truly immoral. Muzan's Blood Demon Art is known as Biokinesis It allows him to alter his body and shapeshift at will. Muzan can also regenerate and get some, and tentacles whips from his back and hands and Muzan can make powerful shock waves. Muzan also has been drugged by Tamayo so as the fight continuous Muzan will get weak