Lightning
Can You Give him Kaio-ken After Vegeta Arc? and Make A new technique, Kaio-ken Amplifies KI Exiting The body, The Body not used to it Gets Overworked and Overcharged, You could Have him learn from Kaio-ken 0.1 or something... lol And Make him Fight his inner Self, He Caused An accident Before Being reborn, He has to face himself and come to terms with himself, Like In Naruto Series, Goku Achieved Ultra instinct, i think there is a reason He reached It on his own, Some conditions? Moving Without thinking? Then why doesn't Animals Become Ultra Instinct? I think It Requires Purity, You have to reach The purest state in something, And I think Every Ultra Instinct is different, Because not every UI can Have KamehameHa, and Purity is Required because he is mortal, a god Is pure Of A Concept, Kai- Creation, Hakaishin- Destruction. Angel- The name defines Itself. A mortal Will require a Pure Something, Goku's was Pure Desire For Fighting Without killing, He valued Strength of His opponents, As Long As His opponents don't Live Solely without Killing, he Will Spare them. So make Him Able to Be Content with himself, And Maybe Make him Modify The 'Witchcraft' Later Shown in Dragon ball super , Or you can Add Something Closely related to FuinJutsu, Shadow and Light Style Should Exist There , Make a FuinJutsu 'Seal' For Sun and Moon, Gods Will Be shocked Seeing a Mortal Create Something out of Nothing From Sun and Moon Seal of Sage of Six paths, From The Concept of Light and Shadow, Make Truthseeking Orbs, Or Make Your Eyes Mangkyo Sharingan, You can Make The Susanoo Dense To Amplify It's Effects after Mastering it, It would Make Good Protection against People When They go SUPER SAIYAN , or F*ck with Beerus By Nullifying Hakai with Truthseekin Orbs, Long live Human, Maybe Make him precieve God Ki When Supreme Kai Appears? Then he Will go 'Human God' Form?