The emotional aspect of the Sharingan can also be portrayed differently in fanfics. While in the original it is often associated with pain and loss for the Uchiha clan, in fanfics it could be a source of hope or a symbol of a character's inner strength. Writers might use it to show how a character overcomes their own demons by mastering the Sharingan.
One way the Sharingan is portrayed differently in Naruto fanfics is through enhanced powers. In some fanfics, the Sharingan might have the ability to control time or space, which is not in the original series. This is to make the story more unique and engaging.
In some fanfictions, Shisui's Sharingan has a different color or pattern. This is a simple but effective way to make it stand out. For example, it could be a deeper red or have an extra swirl in the pattern.
It could be made more intelligent. Instead of just being a summon for combat, it could be a strategic advisor to Naruto, guiding him in his decisions with its ancient knowledge.
In Naruto fanfiction, the Mangekyou Sharingan is sometimes used to create new backstories for characters. For example, a character who didn't have the Sharingan in the original might be given one in the fanfiction, and the story could explore how they came to possess and master the Mangekyou Sharingan. This can add a whole new layer of intrigue to the character.
Nagato, in fanfiction, can be depicted in various ways. Some may show him as a more conflicted character. He has his own beliefs which were shaped by his experiences, like the death of his friends and the destruction he witnessed. He may be more hesitant to change compared to Naruto, but also has the potential for redemption which makes his character interesting.
His relationships can be changed. In the original, his interactions were somewhat limited. Fanfic authors might give him deeper friendships or romances. For instance, he could have a romantic relationship with a character that was not in his story arc in the original Naruto.
In a fanfic, Naruto's teleportation jutsu could be different in terms of its range. Instead of having a set range, it could be based on his current chakra level. So, if he's full of chakra, he can teleport across the entire ninja world, but if he's low on chakra, it's only a short - distance teleport. Also, the jutsu could have a side effect. For instance, every time he teleports, he has a brief moment of disorientation. This would add an interesting element to battles and his overall use of the jutsu. Moreover, the teleportation could be linked to specific landmarks. He can only teleport to places he has a strong mental image of, like his home in Konoha or the training grounds where he practiced with Kakashi.
Fuuinjutsu in Naruto fanfic often has different levels of complexity compared to the original. Fanfic writers may introduce new types of seals that have unique properties not seen in the show. For instance, a seal that can transfer a person's soul into another body. Also, the power levels of existing fuuinjutsu might be exaggerated in fanfic to create more intense storylines.
Ancalagon could also be shown as more intelligent. Maybe in fanfic, he's not just a brute force but a master strategist, planning his moves carefully in the stories. He could outwit other characters through his cunning.
In Naruto fanfiction, it's often portrayed as extremely powerful. It can give characters abilities like seeing through any illusion, predicting an opponent's moves with near - perfect accuracy.
If Naruto had the Sharingan, his battle skills would change. Hinata would be both in awe and a bit worried about this new Naruto. Their relationship could develop through her trying to understand this new power of his. For example, she might offer to help him train to control the Sharingan's abilities, like the genjutsu. During these training sessions, they would grow closer and their relationship would take on a new dimension of mutual understanding and support.