One great 'Ben Oc Harry Potter fanfiction' is 'The Lost Heir of Slytherin'. It has an interesting plot where the OC, Ben, discovers his hidden connection to Slytherin and has to navigate the politics and secrets within Hogwarts. Another one could be 'Ben's Magical Adventures' which focuses on Ben's unique magical abilities that are different from the normal Hogwarts curriculum.
One great 'Harry Potter Black OC fanfiction' is 'The Black Heir'. It has an interesting plot where the OC, a long - lost Black family member, discovers their heritage and has to navigate the complex wizarding world politics. Another is 'Black Phoenix' which focuses on an OC with special powers related to the Black family magic.
One popular 'godlike oc harry potter fanfiction' might be those where the original character has extraordinary magical abilities from the start. For example, a story where the OC can control all elements effortlessly. They might use their powers to change the course of events in Hogwarts, like preventing a major disaster or solving a mystery much faster than the original characters.
There's also 'A Black in Hogwarts'. In this story, the male oc, who is black, brings a fresh perspective to the Hogwarts environment. His experiences as a black wizard in a predominantly white school are explored, and he forms unique bonds with characters like Harry, Ron, and Hermione. He uses his skills and knowledge, passed down through his family, to overcome various challenges.
One great 'Harry Potter x OC Slytherin fanfiction' is 'The Slytherin's Secret'. It follows an OC who discovers a hidden power within the Slytherin common room. Another is 'A Slytherin's Redemption', where the OC tries to change the negative perception of Slytherins in the wizarding world. And 'Slytherin's New Hope' is also popular, which has the OC form an unlikely alliance with Gryffindors to save Hogwarts.
There's also 'A Muggle - born in Hogwarts'. This fanfic focuses on an OC who is a Muggle - born and their journey of discovery in Hogwarts. It shows how they adapt to the magical world and face the challenges that come with being different. It's really interesting to see how the author creates a character that stands out while still fitting into the Harry Potter universe.
One interesting crossover could be Ben using his alien forms to help the students at Hogwarts during a dark wizard attack. For example, his Heatblast form could be useful against ice spells. Another could be Harry Potter using magic to enhance Ben's Omnitrix. Maybe a spell that makes it transform faster or unlock new alien forms.
A common crossover concept is the idea of Ben attending Hogwarts. He would bring his street - smart attitude and his alien - fighting skills. His presence could disrupt the normal hierarchy at Hogwarts. He might get into trouble for using his alien powers instead of magic for certain tasks, but also prove to be a great asset when it comes to facing dark wizards. And his friends from the Ben 10 universe could potentially visit Hogwarts too, causing all sorts of chaos and adventure.
A good Harry Potter OC fanfiction usually has a well - thought - out backstory for the OC. This could include their family history, how they discovered their magic, and what their goals are. The plot should be engaging and flow well. It should also respect the lore of the Harry Potter universe. If it's a Hogwarts - set story, it should follow the rules of the school, like the house system and the classes. The OC should also interact realistically with the canon characters, for example, having believable conversations with Hermione about magic studies or with Ron about Quidditch.
It really depends on the situation. If it's in a magical environment like Hogwarts, Harry might have an advantage with all the spells he knows. But if it's an open area, Ben with his Omnitrix could transform into an alien like Way Big and overpower Harry with his size and strength.
A great Harry Potter OC and Grindelwald fanfiction is 'The OC's Journey with Grindelwald'. It shows an OC who starts out being intrigued by Grindelwald's ideas of a new wizarding order. As the story progresses, the OC realizes the true nature of Grindelwald's tyranny and tries to find a way to undermine his plans. There's also 'OC in the Grindelwald Era' which delves into how an OC copes with the political and magical unrest during Grindelwald's time, and their interactions with various characters both on Grindelwald's side and those who oppose him.