His character could become more confident. Having cosmic powers would give him an edge in battles and in general life. He might start to take on more global or even universal threats, expanding his role from just protecting New York City. His self - identity might also shift a bit as he is no longer just a normal guy with spider - like abilities but someone with cosmic - level powers.
Spider - Man's character would likely develop a sense of isolation. The cosmic powers might set him apart from his normal friends and allies. He may have to search for new comrades who can understand his new powers and the responsibilities that come with them. His sense of humor might also change. While he might still crack jokes, they could be more about the absurdity of the cosmic situations he finds himself in.
If Spider - Man kept the cosmic powers in fanfiction, he would likely face new challenges. With great power comes great responsibility, and these cosmic powers might attract more dangerous enemies. He could also struggle with controlling the powers at first. His relationships with his friends and family might change as they try to adjust to this new, super - powered version of him.
He would likely become more confident. With cosmic powers, Naruto would be able to do things he never thought possible. This newfound ability would boost his self - assurance. For example, he might no longer second - guess himself in battles.
His sense of humor might change. While he still has his quippy nature, it could be more cosmic - themed. For example, he might make jokes about black holes or alien cultures. His empathy could also expand as he meets different beings from across the universe and understands their plights.
Spider Man's character would grow in terms of his detective skills. Since Batman is a great detective, he would pass on some of those skills to Spider Man. This would make Spider Man not only rely on his spider - sense but also on his deductive reasoning when facing enemies. Also, he might become more secretive like Batman, which could change his relationships with his friends and family as they might not understand this new side of him.
He could develop the ability to combine his chakra with his Spider - Man powers. For example, he could infuse his webs with chakra to make them stronger or even give them different properties like being able to cut through objects. Another new ability could be using his shadow clones in combination with his Spider - Man agility. He could send clones to different locations while swinging around with his webs, creating a more complex battle strategy.
If Sokka gets powers, his confidence would likely skyrocket. He's always been the underdog in a sense, being a non - bender. With powers, he'd be more assertive in the group. He might also become more adventurous as he tests the limits of his new abilities.
Naruto's character would develop in a very different way. He might become more confident, almost to the point of cockiness at first. But then he would likely realize the weight of his power. He would have to learn to control it, which could be a new form of character growth for him.
In some fanfictions, Spider - Man might gain the ability to teleport across the cosmos. This could lead to him exploring different galaxies and encountering alien species that are both friendly and hostile. He could use his spider - sense in new ways, like detecting threats from across the universe.
His web - slinging would work great for mobility. He could swing between buildings in the RWBY cities or even use it to quickly move around in the forest areas. His super strength would help him in combat against the Grimm, allowing him to punch them hard or hold them back.
Naruto's character would likely become more complex. He'd have to learn to control the new arrancar powers, which could lead to some internal struggles. He might become more confident, or perhaps a bit more isolated as he tries to understand his new abilities. His values might also shift a bit as he experiences the different nature of arrancar powers compared to his regular ninja skills.