In a fanfic where Naruto is the Sanbi Jinchuuriki, he might have different powers. The Sanbi gives abilities related to water and some unique forms of chakra control. Naruto could potentially use these new powers to create more diverse and powerful jutsu. For example, he could combine his already strong wind - style jutsu with water - style jutsu enhanced by the Sanbi's power, making his attacks more unpredictable and deadly.
Yes, there are likely fanfictions out there with this concept. The idea of Naruto being the host of the Sanbi (Three - Tails) is an interesting twist on the original Naruto storyline. Fanfiction writers often like to play around with different 'what - if' scenarios, and this is one such scenario that can lead to new adventures, different power developments, and altered relationships within the Naruto universe.
Well, Naruto would likely have a whole new set of powers. The Sanbi's abilities could combine with the Nine - Tails' power in interesting ways. He might be able to use water - based attacks more effectively, as the Sanbi is associated with water. Also, his relationship with other characters might change. For example, the Hidden Mist Village might view him differently since the Sanbi was once their asset.
Naruto's character development as the Sanbi Jinchuuriki in a fanfic would be complex. He'd have to face new insecurities. The Sanbi might have a different influence on his emotions compared to the Kyuubi. He could become more strategic in his battles, as the Sanbi's powers might require more finesse. Also, his relationships with his peers would shift. Some might envy his new power, while others might be afraid of it, forcing Naruto to reevaluate his place among them.
In this fanfiction, Naruto Jinchuuriki might have god - like powers such as extreme strength. They could potentially have the ability to control nature on a large scale, like summoning massive storms or earthquakes. Their physical endurance might be enhanced to the point where they can withstand attacks that would normally be fatal.
Obviously, Naruto is one of the main characters. And the other Jinchuuriki would also be main characters. For example, Gaara, who was the Jinchuuriki of Shukaku. There could also be Killer Bee, the Jinchuuriki of the Eight - Tails. These characters are important as they each have their own unique abilities and personalities.
Well, in this kind of fanfic situation, Sakura could also become more protective of Naruto. Since a jinchuuriki is in a rather dangerous position, she might start to see him as someone who needs her support more than ever. She could try to keep his secret safe from those who might want to harm him because of it.
Maybe the Sanbi was sealed inside Naruto by mistake or as a last - ditch effort to save it. Naruto then has to deal with the sudden influx of the Sanbi's chakra and the attention it brings from various ninja clans who want to either use it or destroy it. He has to train hard to master the Sanbi's abilities and prove that he can be a responsible host. As he does this, he also forms a unique bond with the Sanbi, which changes his perspective on power and responsibility. This could lead to him becoming an even more powerful and respected ninja.
Perhaps there's a plotline where the other Jinchuuriki are in danger and Naruto has to rescue them. Since Naruto has a strong sense of justice, he would not hesitate to step in. This could lead to some intense battles and also show Naruto's growth as a character. He might use new jutsu or strategies he has learned along the way.
The important characters would start with Naruto. Then, any of the other Jinchuuriki that the author decides to include. For example, if the story is set in a certain time period, we might see the Jinchuuriki from Naruto's generation more prominently. So, characters like Gaara and Killer Bee would be very important. And there could be some new or less - known Jinchuuriki introduced to add more depth and variety to the story.