In this Ultra Instinct Batman fanfiction, there could be a moment where Batman has to teach others how to access a similar state. Maybe he trains Robin or some of the other young heroes in Gotham. This would not only show his growth as a character but also how he is able to pass on his knowledge and skills. It could also lead to the formation of a new and more powerful team in Gotham to fight against the ever - increasing threats.
One thing that could happen is that Naruto would become much faster in combat. Ultra Instinct gives the user incredible speed and reflexes. So Naruto could dodge attacks that were previously impossible for him to avoid. For example, he might be able to effortlessly avoid Sasuke's Chidori in a new and intense battle between them.
One possibility could be that in this fanfiction, Batman discovers a way to tap into an 'ultra instinct' like power. Maybe it comes from some new technology or a strange encounter. This could make him even more formidable in combat, with his already amazing skills enhanced to a near - superhuman level.
Well, he could change a lot of things. Maybe he'd prevent some of the big battles or save some characters who died in the original timeline. For example, he might stop Frieza from destroying Planet Vegeta earlier. It would also be interesting to see how his Ultra Instinct powers interact with the past events and characters who haven't seen such power before.
Typically, in izuku ultra instinct fanfiction, Izuku gains a new level of power and awareness. His movements become more instinctive and fluid. For example, he can dodge attacks without even thinking consciously. Also, his combat style often changes to be more aggressive yet precise.
It could be a rogue ninja who has also discovered a dark version of the ultra instinct. This ninja uses his power for evil, like taking over villages and enslaving people. He would be a major threat to Naruto and his friends because his power is so similar yet so different from Naruto's ultra instinct - like powers.
Another challenge is adapting his fighting style. Naruto's existing fighting style is based on his ninja training and the use of chakra. Ultra Instinct is a completely different concept. He has to figure out how to integrate the new power into his attacks and movements without losing his own identity as a ninja. For instance, he can't just abandon his signature Rasengan, but needs to find a way to use it in conjunction with Ultra Instinct abilities.
Well, it could be about Goku's new Ultra Instinct form affecting his relationship with Chichi. Maybe she has a hard time understanding this new side of him at first, but then they grow closer as she learns to accept it.
One possible plot twist could be Goku traveling back in time to train with his past self. This would not only enhance his own power but also change the course of his past battles. For example, he could teach his past self Ultra Instinct earlier, leading to different outcomes against foes like Frieza or Cell.
One possible plot could be that there is a rift in the multiverse that brings Goku and Luffy together in a strange new world. They initially misunderstand each other and start to fight. As the fight progresses, they both realize that there is a greater threat at hand that is causing the rift. So, they team up, with Goku teaching Luffy some of his combat techniques and Luffy showing Goku the value of friendship and loyalty in a different way.
One idea could be Harry discovers he has an ultra instinct ability during a life - threatening battle with Voldemort. This new power allows him to anticipate Voldemort's every move and counter it with ease. It could be a power that is awakened when he is in extreme danger and has to protect his friends and Hogwarts.