One idea could be a character who has the power of the Tailed Beasts from Naruto and uses it in the political intrigue of Westeros in 'Game of Thrones'. For example, they could use the power of the Nine - Tails to intimidate their enemies during a battle for the Iron Throne.
A fanfiction could feature a character who is like a god in the sense that they possess the Sharingan from Naruto, but also has the ability to control dragons as in 'Game of Thrones'. They could use their Sharingan to predict the moves of their opponents in the battles for power and use the dragons to enforce their will.
One idea could be a story where Kratos finds himself in the world of Westeros. Maybe he gets involved in the power struggles between the houses. He could use his combat skills to fight against the White Walkers, bringing a whole new level of action to the fight against the undead.
In a 'God Naruto Game of Thrones' fanfiction, Naruto's character would bring a whole new dynamic. His journey to become Hokage in his own world has made him strong - willed and determined. In the Game of Thrones setting, he might view the Iron Throne as something similar to being Hokage. However, the complex web of relationships and betrayals in Westeros would be a huge challenge for him. He'd have to navigate through the schemes of Cersei, Littlefinger, and others while also dealing with the threat of the White Walkers if the story takes place during that time period.
One idea could be to create a story where the ninjas from Naruto are inserted into the political intrigue of Westeros. For example, Naruto, with his strong sense of justice, could find himself in the middle of the power struggle for the Iron Throne. He might try to use his ninja skills to bring peace to the war - torn land, much like he did in the Hidden Leaf Village.
A 'God of War' and 'Game of Thrones' fanfiction might feature a crossover of their mythologies. The gods in 'God of War' could interact with the Seven in Westeros. For example, Zeus could have some sort of encounter with the High Sparrow. Kratos might also have a unique perspective on the power struggles in the Seven Kingdoms, having dealt with his own power - hungry gods in his world.
One idea could be to have Percy Jackson transported to the world of Game of Thrones. Maybe he arrives in Westeros and is mistaken for a powerful sorcerer because of his demigod powers. He could get involved in the power struggles between the different houses, using his skills in combat and his ability to control water to his advantage.
In such a fanfiction, perhaps the concept of the Sharingan in Naruto could be related to some sort of immortality in the Game of Thrones universe. Characters with the Sharingan could see the future and avoid death, like they do in Naruto. They could then use this ability to manipulate the events in the Seven Kingdoms. They might side with different houses based on their own goals, all while trying to keep their immortality - related secret safe from those who would do them harm.
Maybe in the fanfiction, the Gods decide to test Naruto and Percy Jackson by pitting them against each other in a series of trials. This could explore how their different backgrounds and abilities influence their performance in the trials.
Another approach could be to merge the magic systems. In Dark Souls, there are different types of magic like pyromancy and sorcery. Imagine if these were introduced into the Game of Thrones world. Maybe a pyromancer could influence the outcome of battles in Westeros in a new and unexpected way, or a sorcerer could use their illusions to deceive the power - hungry lords and ladies.
One idea could be a story where the political intrigue of the Roman Senate is mirrored in the power struggles of the Great Houses in Westeros. For example, the patrician families in Rome could be compared to the noble houses in Game of Thrones, with similar backstabbing and alliances for power.
It could be a wild adventure where the Triforce from Zelda is a powerful relic in the Game of Thrones world. Maybe Link could be a wandering knight, similar to the sellswords in GoT, but with his own sense of honor and quest for the Triforce. The different races in Zelda, like the Zoras and Gorons, could be seen as strange and exotic races in the GoT setting, adding a whole new layer of intrigue.