If Deku had a quirk in fanfiction, it would likely impact his character development. He might have become more powerful quicker or taken on different enemies. The story could become much more action-packed or focus on different themes.
It could have completely changed the dynamics of his battles and his relationships with others. The Sharingan would have given him an extra edge and new abilities.
It could make for a really exciting and unique story. Deku's growth and challenges would be measured in a more structured way, adding a new layer of excitement to his journey.
If Naruto had the Sharingan in fanfic, he'd likely become even more powerful. His combat skills would improve as he could use the Sharingan to predict his opponents' moves more accurately. He might also be able to use some of the unique jutsus associated with the Sharingan. For example, he could potentially learn to use Amaterasu if the fanfic writer allows for that kind of power combination.
In a fanfic, Naruto with the Rinnegan and Sharingan would have a whole new set of challenges. He would have to deal with the jealousy and fear of other ninja villages. His own village might also be divided on how to handle his new powers. On the positive side, he could use these eyes to better understand the history of the ninja world. For example, the Rinnegan might give him insights into the Sage of Six Paths' true intentions, and the Sharingan could help him uncover secrets about his own family. He would also have to train hard to fully utilize the combined potential of these two powerful eyes, which could lead to some interesting training arcs in the fanfic.
I recommend "From the beginning of Koba to God." After the protagonist, Uchiha Kirikyo, transmigrated, he became one of the twin stars of Koba. He had a placement system and inherited his father's will, practicing the eternal kaleidoscope. I hope you like this fairy's recommendation. Muah ~😗
I recommend Shurunyan in the Entertainment Circle to you. This book is about Xuan's second transmigration to Earth's parallel world. He relied on Shurunyan to become a mighty mudslide. He didn't want to get involved in the infighting of the entertainment industry. He just wanted to be a relaxed and happy plagiarist. However, he accidentally entered the entertainment industry, so he could handle it with ease and was very interesting. I hope you like my recommendation.😗
The presence of the Sharingan could also change the character's relationships. Other characters might be in awe of this new power, or they could be suspicious and fear it. The character with the Sharingan would have to deal with these new attitudes. They might be seen as an outcast or a powerful ally depending on how they use their power. It could also attract the attention of the gods or more powerful beings in the Percy Jackson universe, who might want to either control or destroy this new and unknown power.
Naruto would probably become more of an outcast in some ways. Since the Sharingan is an Uchiha - specific power, having it as a non - Uchiha like Naruto would make others suspicious. This could make him more distrustful of others and more reliant on his own new powers. He might also become more strategic in his battles, using the Sharingan's abilities to analyze his opponents better.