Dark Spiralling Orb

The Dark spiralling orb is a technique created by Yami Kurozetsu. Although this technique required him to use a shadow clone, the result is a larger ball of condensed Chakra that is much more powerful than a Rasengan.In terms of strength it is equal to or even stronger than big ball rasengan.However in part two he doesn't require a shadow clone he can create the Dark spiralling orb by one hands and if required he can use this technique using both hands.