Well, since it's a fanfic, the plot could be all over the place. It could start with a young wizard in Hogwarts suddenly discovering they have this 'mystic knight of thunder' ability. Maybe they have to use it to fight off a new dark force that the regular magic of the wizarding world can't handle. They might go on a journey to discover the origin of this power, meeting new characters along the way, both from the HP canon and some new ones created for this fanfic's unique storyline.
The 'Harry Potter Mystic Knight of Thunder Fanfic' could have a plot centered around a character who is an outcast in the wizarding world due to their strange new power. They are shunned by some but eventually find a group of like - minded individuals. Together, they form a sort of 'mystic knight' squad and use their thunder - related powers to protect the wizarding world from threats that Voldemort's defeat didn't completely eradicate. It could also explore the character's internal struggle with their identity as both a wizard and this new type of 'mystic knight'.
In this fanfic, it's possible that the main character is a new student at Hogwarts who has a hidden past related to the 'mystic knight of thunder' thing. There could be a mentor figure, perhaps an old wizard who has knowledge about this power but has been in hiding. And of course, there would likely be the regular Harry Potter characters who interact with this new 'mystic knight' character in different ways, either helping or hindering their journey to master this power and fulfill their role in the wizarding world.
I'm not sure specifically as there could be many different takes in a fanfic like that. It might be about a character in the Harry Potter universe who is a mystic knight with the power of fire. Maybe they go on adventures, battle dark wizards, or have some sort of special mission related to the magical world of Harry Potter.
Since it's a fanfic, the main character might be the Mystic Knight of Fire themselves. But there could also be appearances from Harry Potter, Hermione Granger, and Ron Weasley as they are central to the original series and could interact with this new character.
One idea could be a story where a Mystic Force Knight is accidentally transported to the Harry Potter universe. He could initially be seen as a strange new wizard and have to navigate Hogwarts while also trying to find a way back to his own world. Maybe he teams up with Harry and his friends to fight off a new dark threat that is related to his own world's magic in some way.
A really interesting plot twist would be if Harry Potter was somehow transported to Gotham as a child and raised there. He would grow up with a different set of values and skills, and when he discovers his magical abilities later on, he has to balance his newfound magic with the street - smart tactics he learned in Gotham. This would completely change his character and how he approaches the fight against Voldemort. And when Batman eventually meets him, he's not the typical Harry Potter we know from the books. It could lead to a whole new dynamic between them.
Well, in some Harry Potter mystic fanfiction, there are plots about magical creatures having a deeper, mystic connection to the wizarding world. For instance, thestrals might be guardians of a mystic realm that only appears during certain lunar phases. Or perhaps a fanfic could focus on a student who has a special ability to see and interact with these mystic connections, leading to all sorts of adventures and revelations within the Hogwarts environment.
One possible plot could be that Harry Potter somehow gets transported to the world of the God of Thunder. Maybe he uses a new, experimental spell that goes wrong and he ends up in Asgard. There, he meets Thor and they initially misunderstand each other. Harry, being a wizard, is seen as a strange and powerful being in Asgard, and Thor is not sure if he can be trusted. But as they face a common enemy, like a dark force that is threatening both the wizarding world and Asgard, they learn to work together. Harry teaches Thor some of his magic, and Thor shows Harry the power of his hammer and the ways of Asgard.
Another idea is that the Cyber Knight is an experiment gone wrong in a secret magical research facility. He escapes and finds himself in Hogwarts. There, he befriends Harry Potter and his friends. They initially don't trust him because of his strange appearance and abilities. But as they get to know him, they realize he can be a great asset in their fight against Voldemort. He could use his cybernetic vision to detect hidden Death Eaters or his enhanced strength to help in battles.
If a Mystic Force Knight character joined the Harry Potter universe, they might have a hard time adjusting at first. They would need to learn about the wizarding society in the Harry Potter world, like the Ministry of Magic, the different houses at Hogwarts, etc. But they could also bring their own sense of honor and chivalry from their world, which could influence the characters in the Harry Potter series. They could end up forming new friendships and rivalries, and perhaps even change the course of some of the events in the story. For instance, if they are really good at combat magic, they could help in the fight against Voldemort in a unique way.
First, you need to do your research on both universes. Know the characters, their powers, and the rules of their respective worlds. For Harry Potter, understand the different spells, the Houses at Hogwarts, and how magic works. For Moon Knight, study his origin, his personalities, and his combat skills. Then, come up with a unique plot idea that combines the two. It could be a crossover adventure where the characters meet, or a more complex story where the two worlds are somehow connected.