Create a highly detailed anime-style image of Cid Kagenou, also known as Shadow, from Eminence of Shadow. He should be in his Shadow form, wearing his iconic black coat made of slime, which flows dramatically in the wind. Surround him with intense, bright purple energy effects, emphasizing his immense power. His expression should be calm and confident, exuding coolness and superiority. Add glowing magical symbols in the background, also in bright purple, to enhance the mystical aura. The overall scene should be dark and intense, with shadowy effects and purple highlights illuminating his figure