Well, one possibility is that Harry could face new magical challenges there. Durmstrang is known for its different approach to magic compared to Hogwarts. Maybe he'll learn some unique spells or face dark magic threats that are more common in Durmstrang's curriculum.
There could be a dark entity that lurks within the Durmstrang castle itself. It might have been awakened by Harry's arrival or has some connection to the school's past. This entity could manipulate students and teachers alike to create chaos and oppose Harry.
There could be some original characters created by the fanfiction authors. These could be Harry's new classmates or friends at Durmstrang. They might have their own unique magical skills and personalities, and through their interactions with Harry, they can help develop the story further. For example, a new friend could introduce Harry to a secret part of the Durmstrang grounds or a special magical technique that's unique to the school.
One possible plotline could be Harry making new friends at Durmstrang. He might meet students with different magical abilities and cultures compared to Hogwarts. Another could be Harry facing new challenges in the Durmstrang curriculum, which might be more combat - oriented or have different magical theories.
One common theme is the fish - out - of - water experience. Fem Harry is used to Hogwarts, so going to Durmstrang is a big change. Another theme is the exploration of different magical cultures. Durmstrang has its own set of traditions and ways of teaching magic that are different from Hogwarts.
Often, Durmstrang is depicted as a more mysterious and perhaps a bit darker school. Its students are shown to be more proficient in the Dark Arts compared to Hogwarts students.
In some fanfictions, the Durmstrang champion could have a backstory that involves a conflict between the values of Durmstrang and those of Hogwarts. They might struggle with the more lenient rules at Hogwarts compared to the strict and often dark - arts - friendly environment at Durmstrang. This internal conflict could add depth to their character as they compete in the tournament.
One possible fanfiction could be about the twin's adventures at Durmstrang. Maybe they face unique challenges there, like dealing with the different magical curriculum compared to Hogwarts. They might also have to navigate the more competitive and strict environment of Durmstrang. For example, they could be involved in a magical tournament that Durmstrang is famous for, and their skills and character are put to the test.
Well, one possible plot could be that Harry goes to Durmstrang to learn different kinds of magic not taught at Hogwarts. Maybe he discovers a new form of defensive magic there. He could also make new friends who have different views on magic compared to his Hogwarts pals. And perhaps he gets involved in a mystery that is unique to Durmstrang, like an ancient curse on the school or a hidden artifact.
Obviously, Harry Potter himself. There would also likely be Viktor Krum, who is from Durmstrang. Krum could be either a friend or a rival to Harry. Igor Karkaroff, the headmaster of Durmstrang, would be another important character. And there could be new students created for the fanfic, like a Durmstrang student who becomes Harry's guide in the new school.