Well, you could write a fanfiction where the main characters lose their memory of all things Bakugan. They then have to rediscover the world of Bakugan from scratch, relearning the rules and the power of their Bakugan. Or perhaps a story where an evil force corrupts some of the Bakugan, and the brawlers have to find a way to purify them without destroying them. Another option is a fanfic that shows the daily lives of the brawlers when they're not in battle, like their training routines and how they interact with their Bakugan in a non - battle setting.
A plot could be that an evil force is trying to steal all the Bakugan in the world. Dan and Runo are the only ones who notice the early signs of this. They embark on a journey to stop the evil force. During their adventure, they meet old friends and foes alike, and they have to use their unique skills and the power of their Bakugan to overcome obstacles and ultimately save the Bakugan world.
You can start by mixing different traits from existing characters. For example, take the determination of one brawler and the strategic mind of another. Then add some unique physical features like a special hair color or a different style of Bakugan launcher. Another way is to think about what kind of Bakugan they would have. Maybe a Bakugan with an ability that no one has seen before. And give them a backstory that ties into the Bakugan world in an interesting way, like they come from a long - lost Bakugan - training family.
Dan could develop from being a bit overconfident to more humble. For example, he might face a really tough opponent in the fanfic and realize that he can't always rely on his usual tactics. Runo could develop her leadership skills. Maybe she has to take charge when Dan is injured or captured, and she discovers she has a natural ability to lead their group of Bakugan brawlers.
One idea could be a female OC who has a special connection with a rare Bakugan. For example, she discovers a Bakugan that has powers no one has seen before. Another could be a story where the female OC is from a different dimension and her Bakugan battling style is completely alien to the regular brawlers. She then has to adapt to the rules of this new world while also teaching others about her unique skills.
One popular female Darkus brawler in fanfiction is often a self - inserted original character created by the writer. They might have unique abilities and a strong personality. Another could be a reimagined version of an existing Bakugan female character with Darkus - aligned powers. For example, a fanfiction might turn a side character into a powerful Darkus brawler.
A fanfic centered around Alice and Shun could explore their relationship. Maybe they start as rivals in the Bakugan battles but gradually realize they have a lot in common. For example, they both have a strong sense of justice and a love for their Bakugan partners. As they spend more time together, they could form an unbreakable bond.
Once upon a time, Lync was a rather reserved Bakugan. He met a beautiful Bakugan named Aurora. Their eyes met during a battle tournament. Lync was immediately smitten. He started to leave little gifts for Aurora, like shiny crystals he found. Aurora was initially hesitant but soon realized Lync's true heart. They began to spend more time together, exploring the Bakugan world hand in hand, or rather, paw in paw.
Well, 'OP' in the context of this 'Fury Tries to Kidnap OP Harry Potter Fanfiction' could be the main character that Fury is targeting because of their special powers. Maybe it's a new character created by the author with unique magical abilities that Fury, for some reason, wants to get his hands on. It could be someone with a combination of different magical skills from the original Harry Potter universe, like being able to perform extremely powerful spells without a wand or having the ability to control all types of magical creatures.