@Formerly Anonymous Mostly because he uses shadow-based attacks, but there's more to it. The theme behind his team is that they're all associated with Dark-type but aren't necessarily bad by nature, just like Hyde himself. His overall design makes him look like a delinquent or a chuu2/edgelord but he isn't.
Kirby inspired pause description Wild Card of the Night Vs. Hyde Kido You have been challenged by the EXS of the Darkness: Void Red! It seems he is an ordinary schoolboy that vowed his promise to protect someone special to him. He sees you as a threat to his promise! Be careful of all of his sword attacks! Even when blocking, it will damage you slightly! Challenge him and prove you are only trying to help beat Paradox, EXS of Super Star!