They could gain new powers through scientific experiments. For instance, if a character like Orochimaru were to study the atomic nature in this fanfiction concept, he might find a way to infuse atomic properties into a ninja's body, thus granting new abilities. This could involve things like the ability to emit radiation - like chakra that can either heal or harm depending on how it's controlled.
Another possibility is through inheritance or a bloodline limit related to atomic powers. A new clan could be introduced in the fanfiction, where their DNA has been altered due to some ancient atomic event. Members of this clan would be born with unique abilities like the power to generate atomic explosions with their chakra, or to see the atomic structure of things, which would give them an advantage in combat and other aspects of the ninja life.
Some characters might gain kinetic energy - related powers through an encounter with a special object or creature. For example, coming across a magical stone that amplifies their ability to manipulate kinetic energy. Or perhaps a spirit that bestows upon them the knowledge and power to use kinetic energy in unique ways. This could lead to new jutsu that are based on kinetic energy principles, such as being able to create kinetic barriers or energy - based clones.
In these fanfictions, another way to gain godlike powers could be by achieving a certain level of spiritual enlightenment. In Naruto, characters often gain more power as they understand themselves and the world better. If they apply this concept in the Pokemon world, perhaps by forming a deep bond with all types of Pokemon, a character could reach a godlike state. This would involve not just catching and training Pokemon, but truly understanding their essence and the energy that flows through them, much like how Naruto characters understand chakra. It's a complex process that would require a great deal of exploration and growth both in the Naruto and Pokemon aspects.
Some characters might inherit kitsune powers through their family lineage. It could be that their ancestors had a connection with the kitsune spirits, and this power has been passed down through generations.
He might gain enhanced physical strength like Bane. Bane was known for his brute force, so Naruto could have a similar boost, being able to overpower his opponents more easily in hand - to - hand combat.
He might gain a more powerful form of Rasengan, like a Rasengan that can change its shape and properties according to the situation. Maybe he has better control over his Nine - Tails chakra and can use it in more creative ways without losing control.
Naruto could potentially gain the power of mind - reading magic. This would be a huge advantage in both the wizarding war and in his interactions within Konoha. He could also gain the ability to transform into magical creatures, which would give him new forms of attack and defense. Another possibility is that he gains the power to nullify magic, which would make him a key player in the fight against wizards who use dark magic.
Naruto would gain some really cool (pun intended) new abilities. The ice - making ability would be the most prominent. He could form ice clones, similar to his shadow clones but with the added advantage of being made of ice and potentially having more durability. His sensory abilities might also be enhanced, as Esdeath has a good sense of her surroundings when using her powers. He could detect enemies hidden in the ice or snow. And, like I said before, the time - freezing power. This would allow him to analyze his opponents' moves during the frozen time and come up with the perfect counter - attack. It would add a whole new dimension to his combat skills.
In this type of fanfiction, Naruto could potentially gain the power to control water more proficiently as Uzushiogakure was known for its water - based jutsu. Maybe he'd also gain some unique sealing techniques that were passed down in Uzushiogakure.
Well, considering the devilish nature of Rias' world, Naruto could gain the power of flight, which is not something he has in his original ninja world. He could also gain the power to resist holy attacks, as devils are often weak against holy elements. Another power could be the ability to create and control demonic flames. These new powers would not only change his combat capabilities but also how he is perceived in this new fanfiction world.
Maybe through some kind of special training or a unique ritual. It could be that he discovers a hidden method within the ancient scrolls of his village.