Black Sapphire Cookie is very confident and full of himself, having earned his Master's recognition for his ability to twist words amongst Cookies in his own theatrical manner. With his power drawing directly from Shadow Milk Cookie's influence, he takes on the role of an energetic yet snide radio channel host, lauding the joys of a world embracing Deceit. Behind the scenes, he can be blunt about his true thoughts, upsetting Candy Apple Cookie with his nonchalance to her antics.