If Naruto ate the Pika Pika no Mi in fanfiction, he'd be a really unique character. He could potentially use his new light - based powers in combination with his existing ninja skills. For instance, he could use light clones instead of shadow clones. And his rasengan could be infused with light energy, making it even more powerful and destructive. His mobility would also change as he could move at the speed of light in certain situations, allowing him to quickly get in and out of battles.
Naruto's character development would be quite interesting. With the Pika Pika no Mi, he would start to view battles and challenges from a different perspective. He might become more strategic, using his light powers to outwit his opponents. Also, his relationships with other characters could change. Some might be in awe of his new powers, while others might be a bit jealous. He'd also have to deal with the limitations of the devil fruit, like not being able to swim, which could add an element of vulnerability to his otherwise fearless character.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
Marvel justifies Marvel Comics 1000 by presenting it as a celebration of their rich history and a platform to introduce fresh and exciting story arcs. It could also be a strategic move to attract new readers and reignite the passion of long-time fans.