KMST 1.2.435 - Luminous

The Black Mage (Or part of him at least. Surely they didn't drop those hints towards Speigelmann for nothing.) is sealed inside Luminous, and we (And by "we", I mean people who can 999999 with normal attacks, etc.) end up going back in time to kill the Black Mage instead of sealing him in order to prevent the Black Mage from gaining control of Luminous. And what better time to do so than while they still have Luminous, who is able to wield both his own powers and the Black Mage's?

The horcrux he didn't mean to make...