His fighting style might also become more strategic. Since the Amaterasu Zanpakuto is a powerful weapon, Naruto would need to think about when and how to use it. He might use his regular ninjutsu to distract his enemies first and then surprise them with a swift strike from the Zanpakuto. Also, he could use his clones to set up a formation where the Zanpakuto's power can be maximally utilized, like having clones surround an enemy and then all attack with the Amaterasu - infused Zanpakuto at once.
One possible storyline could be that the Zanpakuto with Amaterasu's power is a gift from an ancient shinobi to Naruto. Naruto then has to learn to control this new and extremely powerful weapon. He might face challenges like accidentally using it against his friends in the beginning due to its overwhelming power.
Yes, there are likely fanfictions out there where Naruto has a zanpakuto. Fanfiction writers often like to cross over different anime concepts. They might give Naruto a zanpakuto from the Bleach universe to explore new storylines and character developments. It can lead to really interesting scenarios where Naruto has to learn to use the zanpakuto's powers, which are quite different from the chakra - based abilities in Naruto's original world.
At first, Naruto would be clumsy with it. He has no prior experience with Zanpakuto. But his determination would drive him to practice. He'd study how to hold it properly, how to swing it effectively. Maybe he'd even talk to it like he does with his friends, trying to understand its spirit if it has one.
Maybe it's a mysterious traveler from a far - off land. This traveler recognizes Naruto's potential and strength of character and gives him the three zanpakuto as a means to help Naruto protect his village and the people he loves.
Maybe a zanpakuto with the power to heal. Naruto is all about protecting his friends and village. So a zanpakuto that can heal wounds during battle would be very useful. It could also have a secondary ability to boost the chakra of his allies. This would fit with Naruto's selfless nature.
It could be that the zanpakuto was brought into Naruto's world by some sort of interdimensional rift. Naruto, being curious and always eager to grow stronger, is immediately drawn to it. His godlike perception allows him to sense the latent power within the zanpakuto. He might seek out help from characters who have some knowledge of different power systems, like Kakashi. Together, they could try to decipher the mysteries of the zanpakuto, leading to Naruto adding yet another powerful tool to his already impressive arsenal.
One possibility is that Naruto would be very curious about the zanpakuto. He would start to experiment with it right away. He might try to infuse it with his Rasengan, creating a new and powerful attack. This would be a unique blend of Naruto's ninja skills and the power of the zanpakuto.
In a Naruto finds a zanpakuto fanfiction, it could lead to some really interesting crossovers. Naruto might initially be confused by the strange weapon. He could try to use it in his own unique way, perhaps combining his chakra with the zanpakuto's power. Maybe he'd seek out someone to teach him about it, like if he somehow ended up in the Bleach universe and found Ichigo to help him understand the zanpakuto better.
Yes, there might be. The Naruto fandom is vast and creative, so it's possible that some fans have written fanfiction where Naruto marries Amaterasu. You can try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own.