The OC might be someone who has a connection to Sasuke's past that he's not aware of. Maybe they knew one of his family members long ago. Sasuke kidnaps the OC in order to uncover the truth about his family's history that he believes the OC is hiding.
The OC could be a mysterious ninja from a far - off land. Sasuke might think this ninja has some secret knowledge about the Uchiha clan that he wants, so he kidnaps them.
It could be an ordinary person with an extraordinary power that Sasuke discovers by chance. He kidnaps the OC to figure out how to use or stop that power. For example, the OC might be able to control a powerful and dangerous type of chakra that Sasuke is interested in.
Perhaps Sasuke is being controlled by some dark force. He kidnaps the OC because the dark force wants to use the OC's special abilities. As the OC tries to reason with Sasuke, he gradually breaks free from the control and they end up teaming up against the real enemy.
One great OC could be a female ninja named Aya. She is strong - willed, has amazing combat skills, and is not afraid to stand up to Sasuke. Her determination and loyalty make her an interesting character in the fanfiction. Another could be Kai, a male OC who has a unique ability to control the elements in a different way than the known ninja in the Naruto universe. His different perspective and skills make him stand out when paired with Sasuke.
It could be a new character created by the author, like a young kunoichi from a small, far - away village. She might have special powers related to nature, like the ability to communicate with animals. This would make for an interesting dynamic when babysitting Naruto, as he's always been curious about different ninja abilities.
The OC could be an outcast in the ninja world. They don't belong to any major clan and are constantly on the move. Hidan might see this OC as an easy target. The OC might have some unique skills, like being able to communicate with animals, but these skills are not enough to protect them from Hidan when he decides to sacrifice them for his own dark purposes.
It could be an exiled shinobi from a far - off land. Maybe they were wrongly accused in their own village and had to flee. They then come across Naruto and see in him the potential for change in the ninja world, so they decide to raise him with their own set of values.
Spiderman could use his wits. He might find a weakness in Doc Oc's lair or in the technology that Doc Oc uses to keep him trapped. For example, if Doc Oc uses some sort of energy - based restraints, Spiderman could try to short - circuit them using his own web shooters which can conduct electricity in some fanfictions.
A 'sasuke meets oc fanfiction' could be really interesting. It might explore new relationships and character developments. Usually, when Sasuke meets an original character (oc), it can lead to various plot twists. For example, the oc could be from a different ninja clan with unique abilities that Sasuke has never seen before. This could either make them allies or enemies depending on the circumstances. The fanfiction could also delve into Sasuke's reaction to this new character, whether he is suspicious, intrigued, or dismissive at first.
Well, in this kind of fanfiction, Doc Oc could kidnap Spiderman to force him to reveal his identity. Doc Oc might think that knowing who Spiderman really is would give him an upper hand in their ongoing battles. It could also be that Doc Oc wants to study Spiderman's powers. He's a scientist after all, and Spiderman's abilities are quite unique. He might believe that by kidnapping and examining Spiderman, he can find a way to replicate or counter those powers.
The OC master could be a hermit who has been living in isolation for years, developing a unique understanding of the Force. He or she might have witnessed the downfall of the Jedi Order in the past and wants to prevent Anakin from making the same mistakes.
Aang could be an ally. Despite the OC being Ozai's son, Aang, with his forgiving nature, might see the potential for good in the OC. He could help the OC to understand the importance of balance and peace.