Who could be the main antagonist in a 'naruto emperor crossover fanfic'?
It could be a power - hungry noble from the imperial court who sees Naruto as a threat to his own ambitions of ruling. This noble might have his own group of skilled fighters and use underhanded tactics to try and undermine Naruto's rule as emperor.
Another possibility is a group of rogue ninja clans who oppose Naruto's rule as emperor. They might feel that their way of life will be restricted under Naruto's leadership. They could band together and form a sort of rebel alliance. They would constantly launch attacks on Naruto's empire, trying to disrupt its stability and drive Naruto out. This group would be made up of strong and skilled ninja, making them a formidable antagonist for Naruto.
Who could be the main antagonist in a 'naruto juubi crossover fanfic'?
Madara Uchiha could be a great antagonist in this fanfic. Even though he was defeated in the original Naruto story, if he somehow gets resurrected and gets a chance to control the Juubi, he would be a formidable foe. He already had grand plans for the world in the original story, and with the Juubi's power, he could be even more dangerous. He might want to reshape the world according to his vision, and Naruto would have to fight him once again to protect everyone.
Who could be the main antagonist in a 'naruto sam and cat crossover fanfic'?
It could be Orochimaru from the Naruto universe. He might be interested in the cat's special abilities, perhaps thinking he can use them to gain more power or immortality. He would be a formidable antagonist as he has his snake - like powers and is very cunning.
Who could be the main antagonist in a Tinkerbell crossover fanfic?
In a crossover with Snow White, the Evil Queen could be the main antagonist. She might be jealous of Tinkerbell's magic and try to capture her to use her pixie dust for her own dark purposes.
Who could be the main antagonist in 'naruto empire crossover fanfiction'?
Perhaps an ancient evil that has been sealed away in the empire for centuries but is released due to the chaos of the crossover. This entity could be more powerful than any foe the Naruto characters have faced before, forcing them to find new ways to fight.
Who could be the main antagonist in a Daria Naruto crossover fanfiction?
A group of rogue shinobi and some of Daria's school bullies could team up. The shinobi would give the bullies some ninja powers, and together they would cause trouble in both worlds. This group would be difficult to deal with as they combine the physical strength of the shinobi with the local knowledge of the bullies.
Who could be the main antagonist in 'naruto is a dragon crossover fanfiction'?
Another possibility is a corrupted dragon spirit that has been awakened due to the mixing of the two worlds. This spirit could be spreading chaos and trying to destroy both the ninja world and the dragon world. Naruto would have to figure out a way to stop it, as it has powers that are beyond what he has faced before.
Who could be the main antagonist in a 'naruto supergirl crossover fanfiction'?
It could be an evil ninja from Naruto's world who somehow gains Kryptonian - like powers. He becomes power - hungry and decides to take over both the Naruto world and Supergirl's world. His knowledge of ninja techniques combined with super strength and other abilities would make him a formidable foe.
Who could be the main antagonist in a 'naruto samehada crossover fanfiction'?
Madara Uchiha would also make a great antagonist. Imagine if he was resurrected and saw Naruto with Samehada as a threat to his plans of creating a new world order. He would use his Sharingan and Rinnegan powers to try and take Samehada from Naruto, believing that with it, he could easily defeat all who oppose him and reshape the ninja world according to his will.
Who could be the main antagonist in 'naruto is a kitsune crossover fanfiction'?
Maybe another kitsune who has gone bad. In the fanfiction world, there could be a rogue kitsune who sees Naruto as a threat. This antagonist kitsune might be jealous of Naruto's power or his connection to the human world. They could try to undermine Naruto's attempts to protect the village or his friends.
Who could be the main antagonist in 'kagome naruto crossover fanfiction'?
It could be a powerful dark spirit from Kagome's world that somehow manages to cross over to the Naruto universe and starts causing chaos. This spirit might be immune to normal ninja attacks and require Kagome's spiritual powers to be defeated.