Well, Naruto would become extremely powerful. He could use Sinbad's magic powers along with his own ninja skills. Maybe he could fly around the Hidden Leaf Village like Sinbad on his magic carpet and use his powers to protect the village in ways he couldn't before. It would be a really cool combination.
There probably is. Fanfiction often brings together unexpected characters from various works. Since both Naruto and Sinbad are popular characters in their respective series, it's not surprising that someone would create a fanfiction where Naruto is Sinbad. It could be a really interesting read, with new storylines and character developments based on this unique concept.
His character would become more confident. With Sinbad's powers, Naruto would have new ways to face challenges, which would boost his self - assurance.
In this fanfiction, the prototype powers could be something like an early form of chakra manipulation that is different from the traditional Naruto world's chakra use. It might be more raw and unrefined, with the potential for new and unique jutsu.
In this fanfic, they might discover hidden powers within themselves. Sinbad could find a new form of magic related to his Djinn, and Alibaba might unlock a latent ability in his sword. This could lead to them having to train together to control these new powers.
His hidden powers might be the ability to control all five basic nature types without any training. In the original story, Naruto had to work hard to master different nature types. But in a fanfiction, it could be that he has this innate ability which was hidden all along. This would make him extremely powerful and feared by his enemies.
In some fanfictions, Naruto's multiverse powers are portrayed as a way to bring together different versions of himself. Each version has its own set of skills and knowledge. By merging these aspects, he becomes an even more powerful and complex character, able to solve problems that were previously insurmountable.
Well, he could use Freddy's power of entering people's dreams to fight his opponents in the dream realm. Maybe he would trap his enemies in a never - ending nightmare, causing them mental distress and weakening their will to fight in the real world.
One possible plot could be that Naruto somehow gets transported to Sinbad's world. He might start off as an outcast due to his different appearance and powers. But as he shows his ninja skills and strong will, he gradually gains respect. He could then team up with Sinbad to fight against a common enemy that threatens both their worlds.