A possible fanfiction could involve Naruto's ninja skills combined with the God Slayer magic from its respective series and the magic of Fairy Tail. For example, Naruto could team up with Natsu from Fairy Tail and a God Slayer character to take on a powerful enemy that threatens all three of their worlds. They would each bring their unique abilities to the fight, like Naruto's shadow clones, Natsu's fire magic, and the God Slayer's divine - based powers.
Obviously Naruto would be one of the main characters. Since it's a Naruto - based crossover, he's the central figure from the Naruto universe. And then there could be a god or gods. It could be a well - known god from a particular mythology, like Zeus from Greek mythology. He would bring his own set of powers and personality to the story.
One interesting concept could be how Naruto's ninja skills interact with god - like powers. For example, his shadow clone jutsu might be enhanced in a way that surprises both the Naruto universe characters and the god - like entities in the crossover. Maybe he could use it to outwit a god's omniscience by creating so many clones that it becomes difficult to track the real one.
One interesting concept could be the combination of Naruto's world with other powerful deities from different mythologies. For example, seeing Naruto interact with Greek gods like Zeus or Poseidon. It can create unique battle scenarios and power dynamics.
Characters from other mythologies that are crossed over often become popular too. For example, if Thor from Norse mythology is brought into the Naruto world, fans love to see how his hammer - wielding and thunder - controlling powers interact with Naruto's ninja skills. Also, characters like Athena, known for her wisdom and strategic abilities, can add a new layer of complexity to the story when interacting with Naruto and his friends.
Another possibility is that there is a new threat that emerges from the combination of the two universes. Some sort of evil entity that has the powers of both the Naruto universe, like the ability to use chakra, and the dark magic from the God of War world. Naruto and Kratos would have to learn to trust each other quickly in order to stand a chance against this new foe. They might start off at odds with each other due to their different backgrounds and fighting styles, but eventually realize that they need to work together.
In a Naruto - as - God - Slayer - in - High - School - DxD fanfiction, Naruto would have a lot to adapt to. The social structure in High School DxD, with its different factions like the devils, angels, and fallen angels, would be a big change for him. But his experience in the ninja world would help. His shadow clone jutsu could be used for various purposes, like scouting or confusing enemies. And his Uzumaki heritage might give him some unexpected advantages when dealing with the powerful entities in the DxD world.
Kratos would likely be initially suspicious of Naruto. But as he sees Naruto's power and determination, he might start to respect him. Naruto, on the other hand, would be curious about Kratos' world and his dark past. He would probably try to cheer Kratos up in his own upbeat Naruto way.
The plot might involve Naruto being mistaken for a new kind of demigod in the God of War world. He has to prove himself while also trying to find a way back home. Along the way, he learns about Kratos' tragic past and they form an unlikely bond. His jutsu like the Summoning Jutsu could bring in some unique creatures to the battles in that world.
It's really hard to say. Goku from Dragonball has insane power levels that can destroy planets. But Naruto has his own unique abilities like the Nine - Tails' power and his Sage Mode. And if a god is involved, it could be the most powerful as gods usually have omnipotent powers in fanfictions. But it really depends on how the author writes it.