Majin Kuro

Majin Kuro is Kuro Neele's demon form and the only one he possesses. This particular form isn't used by Kuro very often due to it's incredible power and it's ability to control both Darkness and Chaos Elements. It is also not used much because Kuro prefers relying on his human form and his natural swordsmanship skills.

For a brief moment, Kuro's son Izar Neele had access to this form when Izar first acquired the Sche'ra Za'de. This is implied to occur due to the sword's memories of Kuro Neele's power overwhelming his son's willpower. Once Izar's power grew, this form became nothing more than a memory as the Sche'ra Za'de attuned itself to Izar, it's true master and the one being it was forged for.

Regardless, this form was a testament to Kuro's power and thus his enemies came to fear Kuro should he ever unleash his true powers.