Naruto's chakra could potentially fuel the devil arm in unique ways. His large amount of chakra might make the devil arm more powerful or enable it to perform special attacks that are not possible in the normal High School DxD setting. For example, if the devil arm has a fire - based ability, Naruto could use his chakra to make the fire hotter or more controllable.
One possible concept for this fanfiction could be a crossover where Naruto somehow ends up in the High School DxD universe and discovers a devil arm. Maybe he'd initially be confused by its powers and how it works in this new world filled with devils, angels, and fallen angels. He could use his ninja skills along with the devil arm's unique abilities to face new challenges and foes.
Well, Naruto's powers are mainly centered around his chakra control and the unique jutsus he has learned. In High School DxD, the powers are often related to sacred gears or devil abilities. If Naruto were to enter this world, his chakra might be seen as a new type of energy source. His ability to summon toads could be a huge advantage in certain situations. For instance, if he were in a fight against a powerful devil, he could summon Gamabunta, who could cause chaos and distraction. On the other hand, the devils' powers of illusion and teleportation could pose new challenges to Naruto, forcing him to adapt his combat style. His Rasenshuriken, which is a highly destructive jutsu, might be able to break through some of the stronger defenses in the DxD world.
In a High School DxD fanfiction with Naruto and Ghost Rider, their powers could interact in various ways. Naruto's Rasengan, for example, could be combined with Ghost Rider's chain attacks. Naruto's ability to sense danger through his chakra might also be enhanced by Ghost Rider's supernatural senses. They would both be out of place in the High School DxD setting at first, but their powers would quickly make them forces to be reckoned with.
Naruto might also interact with the Juubi on a more strategic level. He could plan with the characters from High School DxD to contain the Juubi first. For example, using the barriers and spells available in the DxD world along with his own shadow clone jutsu to surround the Juubi. Then, they could work on finding a more permanent solution, like using some ancient magic from the DxD universe combined with Naruto's sealing jutsu.
Well, Ben could use his alien forms to help out the characters in High School DxD in battles. For example, if there's a fight against a powerful devil, Ben could transform into Four Arms and use his super strength. The characters in DxD would be amazed by his abilities.
His shadow clone jutsu would have great potential in the High School DxD world. He could use it for reconnaissance, sending clones to gather information about the various factions. Also, Naruto's sage mode could give him an edge in combat. He might be able to sense the presence of different supernatural beings more acutely. Since his powers are based on his own physical and mental training in the Naruto world, he would need to learn how to use them in a world where there are different power structures like sacred gears and peerages.
Naruto's power of chakra would be a huge game - changer. His ability to perform ninjutsu like Rasengan or his more powerful attacks could easily overpower many of the initial opponents in the High School DxD world. For example, in a fight against low - level devils or fallen angels, his attacks would be very effective.
In the High School DxD universe, Naruto's chakra might be seen as a new form of energy. His Sage Mode would give him enhanced senses and strength. He could detect the presence of devils and angels from afar. When using Sage Mode, his attacks would be even more powerful. For example, a Sage Mode - enhanced Rasengan could cause massive damage to the toughest of opponents in the DxD world.
One possible story could be that Naruto is somehow transported to the world of High School DxD. He might initially be confused by the presence of devils and the different power systems. His ninja skills could give him an edge, and he could form an unlikely alliance with some of the characters from High School DxD, like Issei. They could team up to face a new threat, perhaps a powerful stray devil that is causing chaos in both their worlds combined.
Naruto would probably be very curious about Gabriel. He's used to dealing with all kinds of strange and powerful beings in his own world, but Gabriel with her angelic nature would be something new. He might start by asking a lot of questions about her powers and the world she comes from.