Naruto's inclusion in a fanfiction with Gungnir and Fate Stay would bring a fresh dynamic. His sense of justice and loyalty would likely lead him to side with those in the Fate Stay world who are fighting for good. Gungnir would add an element of mystery and power. He could use it in combat against the more powerful foes in the Fate Stay universe. His journey in this new world would be one of discovery, not only of the new place and its people, but also of how to best utilize Gungnir and his own abilities in this different context.
It could be a very interesting crossover. Maybe Naruto somehow gets his hands on Gungnir, the powerful spear from Norse mythology often associated with Fate Stay. He could use it in his battles in the Naruto world, or perhaps it transports him to the Fate Stay universe where he has to adapt to new rules and enemies.
Well, Naruto could enter the Fate Grand Order world through some kind of portal or magic spell. Once there, he would meet Mash. His unique abilities would surprise the characters in that world. He could use his transformation jutsu to disguise himself or his allies. And his ability to quickly adapt to new situations would help him in the complex world of Fate Grand Order. He could also form a strong bond with Mash, with their shared values of loyalty and protecting others.
If Naruto were in Fate Stay Night as a godlike being, he would likely change the power dynamics significantly. His vast chakra reserves and powerful jutsu could overpower many of the Servants. For example, his Rasengan might be able to break through even the strongest magical defenses. He could also use his shadow clone jutsu to outnumber his opponents in battle, which is a strategy not typically seen in the Fate Stay Night universe.
A Naruto character like Naruto himself could fit in as an unexpected hero. He could be drawn into the Holy Grail War due to his strong sense of justice. He might not understand all the rules at first but would quickly adapt. His goal could be to protect the innocent, which is in line with his character in Naruto. He would use his ninja skills, such as his high - speed movement and combat abilities, to face the Servants and mages in the Heaven's Feel plot.
Rin could be a foreign exchange student from a different magical school in the Fate Stay Night world. She would bring her knowledge of different magic systems and her strong - willed personality. She might get into friendly rivalries with the top students at Hogwarts, like Hermione, and together they could learn from each other's magical techniques.
Well, Percy might be initially shocked by Medusa's appearance. But given his heroic nature, he could try to understand her situation. Maybe he'd see her as a victim of the cruel fate in the Fate universe, rather than just a monster.
Naruto's chakra - based powers and Fem Gilgamesh's magic would be an interesting combination. Naruto could use his Rasengan, a powerful chakra - based attack, while Fem Gilgamesh could enhance it with her magic, making it even more destructive. Or she could use her magic to create barriers to protect Naruto while he charges up for a big attack.
A godlike Naruto in a Fate Stay Night fanfiction could be a protector. Given his nature to protect his friends and those he cares about, he'd likely see the innocents caught in the crossfire of the Grail War and step in. He could use his powers to shield them from harm. His Nine - Tails chakra could act like a powerful shield against magical attacks. And he'd probably try to find a more peaceful solution to the conflict rather than just fighting for the sake of winning the Grail.
Well, Gojo could be a super powerful outsider. Maybe he comes to the Naruto world to study its unique chakra system. His Infinity ability would be a game - changer. He could use it to easily deflect most ninjutsu attacks. And his Six Eyes could help him detect hidden enemies or traps that normal shinobi might miss.
Naruto's character would fit in quite uniquely. His boisterous and positive personality would be a contrast to some of the more solemn characters in Fate Apocrypha. His ability to make friends easily could lead to some interesting alliances. For example, he might befriend some of the more morally ambiguous Servants and sway them towards a more positive path.