An anime-style illustration of a man in a suit with gray hair

An anime-style illustration of a man in a suit with gray hair. He is holding a glowing ruby in one hand, with a glowing magic circle surrounding him. The man's expression is intense, with sharp, piercing eyes and narrow pupils. The scene is dimly lit, with the only sources of light being the ruby and the magic circle, creating a dramatic contrast. The illustration should depict the man's full body, emphasizing the details of his suit and the mystical elements. Ensure the image is high resolution and high definition, capturing the intricate details and creating a masterpiece with a dark, magical atmosphere.