Demon Art: Devil's Jewelry Box

A technique created from Shinzo's dark chakra, which comes from the Hero Orb. This was gained by applying Shape Transformation, and creating a special attack. The user holds out two fingers and black energy sparks in their hand, and then a black box shape, forms all around the opponent, including under their feet, completely trapping them. Then spikes made of the user's dark chakra stab into the box, each spike stabs into a part of the users body, and the opponent, causing fatal damage, and most of the time death.