What are some interesting plot ideas when OC reincarnated into Harry Potter fanfiction?

Well, they could be reincarnated as a Muggle - born wizard who has memories of the modern world. This would lead to some really strange situations. They might introduce modern technology concepts to the wizarding world, like trying to set up a wireless network using magic. This would not only be a huge culture shock but also could change the way wizards interact with each other. It could also attract the attention of the Ministry of Magic, who would be both intrigued and worried about this new development.

Another plot could be that the OC is an outcast in the wizarding world due to their unorthodox magical abilities. They see Harry as a kindred spirit. When they adopt him, they take him on a journey to discover the true nature of magic, which is different from what is taught at Hogwarts. This could involve exploring hidden magical realms and learning from magical creatures that are not well - known in the wizarding community.

One idea could be a male oc who is a transfer student from a different wizarding school. He has unique magical abilities that are rare in Hogwarts, like the ability to communicate with magical creatures on a deeper level. This could lead to him helping Hagrid with some of the more dangerous creatures and getting into all sorts of adventures around the Forbidden Forest.

One idea could be that the OC is a transfer student from a far - off magic school. The harem could consist of characters from different houses. For example, Hermione could be attracted to the OC's vast knowledge of ancient magic that he or she learned from their original school. Ginny might be drawn to the OC's brave and adventurous spirit, similar to Harry's. And Luna could be interested in the OC's unique view of the magical world, which is different from Hogwarts' norm.

Well, a great plot idea could be that the mermaid OC has the power to communicate with magical creatures that live in the lake and around Hogwarts. When some strange and dangerous creatures start to act up, she warns Harry Potter. They then team up to figure out what is causing the creatures to behave this way. Maybe it has something to do with a dark spell cast by Voldemort's followers. Or perhaps the mermaid OC falls in love with a Hogwarts student, and they have to face the challenges of a relationship between a mermaid and a human - like in the classic mermaid tales, but with a Harry Potter twist.

One idea could be that the OC is a foreign exchange student who has unique magical abilities unknown to Hogwarts. They could help Harry in the Triwizard Tournament tasks in unexpected ways, like using ancient spells from their home country.

Well, an interesting plot for a Harry Potter oc fanfic could be an OC who discovers a hidden chamber in Hogwarts that has been sealed off for centuries. This chamber could hold the key to a powerful magic that could change the balance between good and evil in the wizarding world. Or perhaps an OC who has the power to see the future in their dreams but doesn't understand it at first, and they keep having these strange dreams that seem to be related to Voldemort's return. They then have to figure out what it all means and how to use this power to help their friends.

The reincarnated OC might also change the relationships between the main characters. For example, they could become a close friend to Harry Potter and influence his decisions in a different way. They might introduce new ways of thinking about magic that make the other characters question their own beliefs and practices. This could lead to a whole new dynamic within the group and change the course of the story in unexpected ways.

One idea could be that the Witch OC is a transfer student from a far - off magical school. She has unique magical abilities that are rare in Hogwarts, like the ability to communicate with magical creatures on a deeper level. This could lead to her helping Hagrid with some of his more difficult creature - related tasks and catching the attention of Harry and his friends.

One idea could be an SI (self - insert) who has the power to manipulate time enters the Harry Potter world. They could use their power to prevent certain tragedies, like Sirius's death. Another could be an OC (original character) with the ability to communicate with magical creatures. They team up with Harry and friends to uncover a plot that involves the Forbidden Forest's creatures being used by dark wizards. And an SI who is a master of potions from a different magical world comes to Hogwarts and starts creating new and powerful potions that help in the fight against Voldemort.