The fanfiction could start with Naruto not knowing who his real father is. As he discovers that Deadpool is his father, he has to learn about a whole new world outside of the ninja world. Deadpool might have left some strange artifacts or powers for Naruto. Naruto then has to figure out how to use these things to his advantage, perhaps against a new threat that is too powerful for the normal ninja techniques. Along the way, he forms an unlikely alliance with some of Deadpool's former friends or foes, creating a really unique and exciting story.
Naruto's sense of humor would definitely change. He would likely have a much darker and more sarcastic sense of humor, like Deadpool. His confidence might also skyrocket in a different way. Instead of just believing in himself as a ninja, he'd believe in his ability to break all the rules like Deadpool does. He might also be more open to using unethical means to achieve his goals, which would be a big shift from his normal self.
Well, in this 'Naruto son of Maleficent' fanfiction, Naruto could inherit Maleficent's ability to transform into a dragon. This would be a huge advantage in battles against powerful foes in the Naruto universe. However, he would first need to learn to control this power. Maybe he gets training from an unexpected source, like a hermit who knew his mother in the past. And as he masters his powers, he also tries to change the perception of his village towards him.
The plot might involve Naruto growing up in a world that's a mix of Naruto - like elements and High School DxD. Grayfia would be his mother figure, and he'd inherit some of her abilities or characteristics. There could be a conflict where Naruto's original ninja values clash with the values of the new world. He might also have to face enemies who are after him because of his connection to Grayfia. And as he grows, he discovers more about his true identity and his place in this strange new world.
Well, one possibility could be that Naruto inherits some of Cooler's unique abilities. Maybe he has an innate power of extreme cold that he has to learn to control. This could lead to new jutsu development as he combines his existing ninja skills with this new power.
In such a fanfiction, the plot could involve Naruto growing up with Itachi as his father figure. He might inherit some of Itachi's unique abilities like the Sharingan in a unique way. Maybe he would face different challenges in the ninja world, as people would react differently to him being the son of Itachi. Also, his relationships with other characters like Sasuke would be very different, perhaps a more brotherly bond from the start.
It's hard to say. Naruto has his powerful jutsu like the Rasengan and his Nine - Tails chakra. But Deadpool is almost unkillable. If Naruto couldn't figure out a way to completely destroy Deadpool, Deadpool would keep coming back for more and eventually wear Naruto down with his unpredictable attacks.
Well, perhaps in the fanfic, Naruto is a big fan of Deadpool's comics in his own ninja world. One day, a mysterious jutsu goes wrong and he starts seeing Deadpool - like hallucinations. These hallucinations actually start teaching him new combat techniques and a different way of looking at life. As he follows these 'visions', he becomes more like Deadpool in his approach to battles and challenges in the ninja world.
In such a fanfiction scenario, Naruto would probably become even more unpredictable. Deadpool's unorthodox fighting style and crazy antics could influence Naruto's combat approach. He might start using more untraditional jutsu combinations or have a more carefree attitude during battles.
Well, it could be really wild. Maybe Deadpool would teach Naruto some of his unorthodox combat styles. Naruto might pick up Deadpool's sense of humor too, which would be quite a change for the ninja world.
Deadpool could make Naruto more sarcastic. Naruto is usually very straightforward and earnest, but being around Deadpool might change that.