There are indeed 'naruto is evil' fanfictions. Some might explore the idea of Naruto being pushed to the edge by the discrimination he faced in the village as a child. This could lead to him developing a hatred for the people who once shunned him and thus be portrayed as evil. It could also be that a failed experiment or a wrong encounter with a powerful and malevolent force turns him into a villain in the story.
Yes, there might be such fanfictions. A common theme could be Naruto being corrupted by some dark power. Maybe he's influenced by an ancient evil entity that changes his perception and makes him turn against his friends and the village. Another theme could be a misinterpretation of his powers leading to him being seen as evil by others in the fanfiction world, when in fact he's just trying to do what he thinks is right in a different way.
Power - hunger is also a theme. The idea of Naruto as an evil avatar might explore his insatiable thirst for power. This could involve him seeking out forbidden jutsus or making deals with shadowy characters to increase his strength, regardless of the consequences to others.
One common theme is the corruption of power. The Sharingan, being a powerful ability in the Naruto universe, when turned 'evil' can lead to a character's downfall. For example, a character might use the evil Sharingan to gain control over others in a more forceful and unethical way compared to normal ninja tactics. Another theme could be the struggle between good and evil within the user of the evil Sharingan. They might be constantly fighting their inner demons while being influenced by the dark power of the Sharingan.
Well, a common theme is the alteration of relationships. With the Evil Rinnegan, Naruto's relationships with his friends and allies could change drastically. For example, some friends might be scared of him or turn against him. And in terms of the story's setting, it often involves a darker, more dangerous world. Since Naruto has this evil power, the balance of power in the Naruto universe is disrupted. Enemies might be more aggressive or new, more powerful enemies could emerge, drawn to the power of the Evil Rinnegan. It also often has themes of mystery, as the origin and true capabilities of the Evil Rinnegan in these fanfictions are usually something to be uncovered.
One common theme could be the struggle between good and evil within Naruto himself. In this type of fanfiction, it might show Naruto being tempted by darker forces, like the power of the Nine - Tails being misused. Another theme could be the corruption of the ninja world. It could explore how the existing power structures in the Naruto universe can be perverted to serve evil ends.
Another theme is the idea of revenge. If Naruto has been wronged in some way in the fanfiction, he might turn evil and badass as he seeks revenge on those who have hurt him. This could lead to some intense and dark storylines where he goes up against his former friends and allies.
The theme of transformation is quite common. Naruto might try to transform Evil Lyn into a better person. Also, the struggle between good and evil is a big one. With Naruto representing good and Evil Lyn being on the 'evil' side, their interactions in fanfictions are often centered around this struggle. And there is often a theme of trust building. Naruto has to decide whether to trust Evil Lyn and vice versa, which creates a lot of interesting plot twists.
Another theme is the exploration of different worlds. Fanfictions might take Naruto characters into the Resident Evil world or vice versa. This allows for a lot of world - building and exploration of how the two very different universes would interact with each other. For instance, how would Naruto's Konoha village function in a world full of bio - hazards? Or how would the Umbrella Corporation react to the presence of ninjas?
Power corruption is a common theme. As Naruto turns 'evil', his newfound power often goes to his head, leading to him making morally questionable decisions. For example, in some crossovers, he might use his powers to dominate others instead of protect them.
Common themes in 'naruto evil bloodline fanfiction' are quite diverse. The idea of a forbidden origin is a big one. The evil bloodline usually has a backstory that involves something dark or forbidden in the past. There's also the theme of being an outcast. People with these bloodlines are usually not fully accepted in the ninja world. And then there's the concept of a power that is both a curse and a gift. The abilities from the evil bloodline can be very powerful but at the same time, they bring a lot of problems and moral dilemmas for the characters who possess them.
Revenge is a common theme. Many OCs in these fanfictions turn evil because they have been wronged in some way and want to get back at those who hurt them.