In fanfiction, if Merlin is a teacher at Hogwarts, he could be a very strict teacher. Since he has seen a lot in his long life, he might have high expectations for the students. He could teach a special class on magical artifacts, where he tells the students about the history and power of different items. His classes would be full of mystery and wonder, as he would often show off some small magical tricks that are not in the textbooks, making his classes the most popular at Hogwarts.
Merlin at Hogwarts as a teacher in fanfiction would be amazing. He might be a teacher of a subject like Ancient Magical Arts. Given his vast knowledge and power, he could introduce students to magic that has been lost for centuries. His presence would also attract a lot of attention from other teachers, who might be in awe of his skills or a bit jealous. And the students would surely be excited to learn from someone with such a legendary reputation.
Well, in fanfiction, Merlin as a teacher at Hogwarts could bring a whole new level of magic. He might teach some ancient and powerful spells that are long forgotten in the regular curriculum. His teaching style could be very different, perhaps more hands - on and based on his own experiences from his time. He could also have some really interesting interactions with the students, like sharing stories of his adventures which would both inspire and terrify them at the same time.
He might teach transformation magic at an advanced level. Given his own abilities, he could show students how to transform into complex and powerful forms that are not usually taught. For example, he could teach them how to transform into mythical creatures with special powers.
One possibility could be that Naruto would teach a class on physical combat. He could use his ninja skills and chakra control to train students in a more hands - on and dynamic form of self - defense. His energetic and determined personality would inspire students to push their limits.
In a 'Merlin and Arthur at Hogwarts' fanfiction, the story could start with Merlin accidentally casting a spell that sends them both to Hogwarts. At Hogwarts, Arthur is amazed by the magical creatures and the Quidditch games. Merlin tries to blend in but his unique abilities make it difficult. They both get caught up in a mystery within the school, like a hidden chamber that holds a powerful and ancient magic. As they explore, they discover that their fates are somehow linked to the history of Hogwarts, and they must use their combined skills - Arthur's leadership and Merlin's magic - to solve the mystery and find a way back to their own world.
There is a fanfic titled 'Merlin's Influence at Hogwarts' which details how Merlin's magic and his legend start to affect the students and teachers at Hogwarts. It's really interesting as it combines the lore of both universes. In this story, the characters from Hogwarts start to discover ancient spells that are related to Merlin's time, and they have to figure out how to use or control them. This creates a lot of tension and adventure throughout the story.
Well, he might show off some really old - fashioned but extremely powerful magic that would shock everyone at Hogwarts. Maybe he'd befriend Harry Potter and teach him some ancient spells that could defeat Voldemort in a whole new way.
Merlin would likely be seen as a bit of an enigma at Hogwarts. His magic is different from the norm, so he might be a bit of an outsider at first. But his kind heart and loyalty would soon win over his classmates. Arthur would be the brave and headstrong character, perhaps a bit like a Gryffindor version of his usual self. He'd be eager to learn about combat magic and would probably be a natural leader in group projects or Quidditch teams.
The theme of transformation is quite common. As Merlin teaches, his students - be it ordinary people or those in power like Arthur - are transformed. They become more open - minded about magic. Also, the theme of legacy is present. Merlin is passing on his knowledge of magic, which has been a long - held secret in Camelot. This knowledge is part of his legacy, and he wants to ensure it survives. There are also fanfictions where the theme of friendship is explored through the teaching relationship. Merlin forms bonds with his students that go beyond just teacher - pupil dynamics.
Merlin could be a guiding spirit for the founders. He might appear in their dreams, offering advice on how to create a school that would last for centuries and educate young wizards and witches. His ancient wisdom would be invaluable in making decisions about the school's rules, curriculum, and the sorting system.
You can start by looking on popular fanfiction websites like Archive of Our Own or Fanfiction.net. Just use the search terms 'Hogwarts' and 'Merlin' and you should get a list of relevant fanfics.
He would probably interact with Dumbledore. They are both very wise, and Dumbledore would be eager to learn from Merlin's ancient knowledge.