When facing a common enemy, Naruto's Nine - Tails chakra could be combined with Alucard's vampiric powers. For instance, the Nine - Tails' massive chakra could fuel Alucard's more energy - consuming abilities, such as his ability to summon a large number of familiars. In return, Alucard could use his knowledge of dark magic (if in the fanfiction) to help Naruto better control the Nine - Tails' chakra, maybe even creating a new form of chakra - powered attack that combines both of their unique natures. This combination would be extremely difficult for the enemy to counter, as it would be a blend of two very different and powerful power sources.
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.
One possible new power could be the power to absorb and use any chakra, regardless of its origin. This would make him extremely powerful as he could draw from the chakra of his enemies or even from natural sources like the sun or the earth. He could also gain the power of telepathy on a large scale, being able to communicate with anyone in the world or even across different dimensions. Additionally, he might obtain the power of instant teleportation to any place he desires, which would give him a huge advantage in battles and travels.
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.
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, it could be that there's a plot device like an ancient artifact. This artifact might have the power to draw out and combine the Akatsuki powers. The Akatsuki members themselves might be tricked into contributing their powers to this artifact, and then the protagonist or an antagonist gets hold of it and gains all those combined powers. It's a common trope in fanfiction to use such magical or mysterious items to bring about extraordinary power combinations.
Well, in Naruto fanfiction, the Kyuubi often has the power of destruction. It can unleash huge amounts of raw chakra that can level mountains or create massive shockwaves. The Kyuubi's power can also be used for healing in some fanfictions. Since it has such a large amount of chakra, it can be used to heal the jinchuriki's wounds, even from near - fatal injuries. Also, in certain fan - made stories, the Kyuubi has the ability to communicate telepathically with the jinchuriki, providing wisdom and knowledge from its long existence.
Psychic powers in Naruto fanfiction can also be given to other characters. For example, Sakura could have psychic powers that allow her to predict an opponent's moves more accurately. This would change the power dynamics in battles and relationships within the story. Fanfiction writers use these psychic powers to explore different plotlines and character developments that the original series might not have covered.