One possibility could be that Naruto discovers a new and ancient jutsu that allows him to summon Slifer the Sky Dragon. This could completely change the power dynamics in the Naruto universe. Maybe he uses it to defend Konoha against a powerful new enemy, and the dragon's abilities like its powerful lightning attacks give Naruto an edge in battle.
One idea could be a young Naruto discovers an ancient scroll that allows him to summon dragons instead of toads. He then has to train with these dragons to master new jutsus. Another could be that the dragon summons are from a different dimension and bring with them a new type of chakra that Naruto has to learn to control.
A likely main summon could be Gamabunta. He's big, powerful, and has a long - standing relationship with Naruto. He could teach Naruto some really advanced water - based jutsu.
The Snakes, especially those related to Orochimaru's summons, are often used in fanfiction. They can bring an element of mystery and danger. Some fanfictions might explore the idea of a redeemed snake summon that helps Naruto in his quests, or a more powerful, ancient snake that was hidden away until now.
I'm not sure which novel you're referring to because you didn't provide a specific name or description. But according to what I know, Naruto, Dragon Ball, and Reaper are all famous anime works that contain many powerful characters and abilities. If you can provide more information, I will be more than happy to provide you with a more accurate answer.
Yes, in many Naruto fanfictions, Naruto has summons. Fanfiction writers often explore different types of summons for Naruto that might not be in the original story. For example, he could have unique or powerful creatures as his summons, which adds an exciting new dimension to the story.
The plot could involve Louise having to learn how to control the dragon. Maybe she faces challenges from her peers who are jealous or scared of her newfound power. The dragon could also have a special ability that is key to saving their world from a great evil.
In this fanfiction, different summons can change the power balance. Let's say Naruto summons a spirit that can nullify all chakra - based attacks. This would make his enemies have to come up with new strategies, and it could also make some of his allies jealous or fearful of his new power. The plot would then revolve around how he manages these new relationships and the power shift.
In many fanfictions, beetle summons are depicted with a strong sense of loyalty to their summoners. They'll follow commands without hesitation, even in the face of great danger.
In Naruto fanfiction, some of the often - considered most powerful summons are the Ten - Tails. It's an extremely powerful and ancient being. Another could be the Sage of Six Paths' summon, if there is such a concept in certain fanfictions. These are usually depicted as having near - god - like powers and can change the course of battles completely.