Well, one interesting plot could be that Daniel LaRusso from 'Karate Kid' is a wizard in disguise in the 'Harry Potter' universe. He then uses his karate skills and magic to outwit the bad guys. He might teach some of the karate moves to the Hogwarts students, creating a new form of defense for them. This would involve a lot of interaction between the two different sets of characters and their unique skills. There could be a whole sub - plot about how the wizarding world reacts to this new form of combat and how it might change their traditional ways of fighting. Another aspect could be how Daniel adjusts to the wizarding world while still holding on to his karate roots.
A plot where Harry uses karate to defeat Voldemort in a hand - to - hand combat after his magic is temporarily blocked would be very interesting.
Imagine a fanfiction where the magic in 'Harry Potter' and the chi - based power in 'Karate Kid' are somehow related. So, characters from both worlds have to work together to understand this connection. For example, Ron and Daniel LaRusso could team up. Ron would be amazed at the physical power Daniel can generate through karate, and Daniel would be in awe of Ron's magic. They would then explore how to combine these powers to defeat a common enemy that is threatening both their worlds.
One cool plot twist could be that the magic in the Harry Potter world is slowly fading, and the only way to restore it is through the discipline and energy of karate. So Harry and his friends have to learn karate from the Karate Kid characters to save the wizarding world. And maybe the wizarding world has been suppressing the knowledge of karate - magic connection for centuries because it was seen as too dangerous. This kind of plot twist would create a whole new dynamic between the two universes and lead to a lot of interesting character development and storylines.
Well, perhaps Voldemort has a secret weapon in the form of a karate - trained Death Eater. This Death Eater could use karate moves along with dark magic to fight against Harry and his friends. In response, Harry could seek out a karate master in the wizarding world who teaches him unique moves that can counter the dark magic - infused karate. Also, Ron could be the comic relief in the fanfiction, trying to do karate but always getting it wrong at first.
One interesting plot idea could be that the OC is a new student at the dojo. Cheng initially sees the OC as a threat to his status but as they train together, they start to understand each other more. For example, the OC might have a unique fighting style that Cheng is initially dismissive of but later tries to incorporate into his own techniques.
One idea could be that Harry's kid discovers a hidden magical ability that even Harry doesn't have. For example, the power to communicate with magical creatures in a way that goes beyond normal magic. Another could be that the kid gets into trouble at Hogwarts by accidentally stumbling upon a long - forgotten secret chamber. Maybe it's a place filled with ancient spells and artifacts that are both dangerous and exciting.
One interesting plot idea could be Bulma inventing some sort of device that allows her to understand and use magic, which then leads to her enrolling in Hogwarts. Another could be Harry Potter traveling to the Dragon Ball universe and Bulma helping him learn about their technology. There could also be a plot where Bulma's scientific knowledge is used to solve some of the mysteries in the wizarding world, like how to defeat a particularly difficult dark magic.
A really cool plot is when the Wakandan warriors are brought into the wizarding world to fight against the dark forces. Their combat skills combined with magic could make for some epic battle scenes. Also, there could be a story where a magical artifact from Harry Potter ends up in Wakanda and causes a stir, leading to a journey of discovery about both worlds. This would involve characters from both universes working together to understand the significance of the artifact and how it affects their respective worlds.
One interesting plot idea is when the magic systems of Asgard and Hogwarts collide. For example, the use of seiðr (Asgardian magic) in the wizarding world of Harry Potter. Another is characters from Asgard attending Hogwarts. Imagine Loki causing chaos in the halls of Hogwarts or Thor trying to fit in with the wizards.
One interesting plot idea is Doflamingo using his string powers to manipulate the wizarding politics. He could be like a puppet master, pulling the strings of important wizarding figures. Another is a team - up between Doflamingo and some of the darker characters in Harry Potter, like the werewolves or certain Death Eaters, to create a new regime in the wizarding world.
Well, the Karate Kid 2 story takes Daniel and Mr. Miyagi to Okinawa. Once there, Daniel has to deal with some local bullies who are not happy about his presence. Meanwhile, Mr. Miyagi has his own history to confront in his hometown. It's a story full of action, friendship, and discovery. Daniel gets into trouble with a local karate expert who has his own grudges and ideas about who should be in control in the karate world. Through all this, Daniel grows as a person and a martial artist.
Another idea could be the friendship between the street kid and the well - known Harry Potter characters. Maybe the street kid is initially distrustful of them but gradually learns to trust and rely on them. They could bring a different perspective to the magical world that the other characters haven't considered before.