Power dynamics is a common theme. In a 'Harry Potter x Avatar: The Last Airbender' crossover, the different ways of using power in both worlds are compared. Also, the theme of discovery is there. Harry discovers new places, new magics, and new peoples in crossovers. And the theme of sacrifice often shows up. Harry might have to sacrifice something from his own world or his own self in order to save the combined world in the crossover story.
One common theme is the clash of different cultures. For example, when Harry Potter crosses with Star Trek, the scientific and technological culture of Star Trek clashes with the magical culture of Harry Potter. Another theme is the exploration of new powers. When combined with something like the X - Men, new powers and abilities can be explored. Also, friendship often remains a key theme. No matter what world Harry enters in the crossover, his ability to form strong friendships and alliances is always important.
The theme of identity is quite common. In crossovers like 'Harry Potter and Percy Jackson', Harry has to re - evaluate who he is when faced with a different kind of hero. Another frequent theme is the fight against a greater evil. Whether it's the Dark Lord in Harry's world or some other big bad in the crossover world, there is always a struggle. And adaptation is also a theme. Harry has to adapt to the new rules and environments of the crossover world, like in a 'Harry Potter x Game of Thrones' crossover where he has to deal with the politics and power struggles of Westeros.
One common theme is the clash of cultures. The ninja - like Akatsuki with their own values and traditions coming into the very different wizarding world of Harry Potter. Another theme is power struggles. Akatsuki members are often power - hungry in their own universe, and in the Potter world, there are different power dynamics with the Dark Lord and the Ministry of Magic.
One common theme is the clash of different worlds. For example, when Harry Potter is rescued in a crossover with another universe, like the Star Wars universe, there's a lot of focus on how the magic of Harry's world interacts with the technology and different species in Star Wars. It's about two very different concepts trying to coexist.
One common theme is cultural exchange. Since Hetalia is about different nations, when combined with Harry Potter, it often shows how the different cultures of the Hetalia characters interact with the magical culture of the Potterverse. For example, how they react to magic spells compared to their own 'powers' in Hetalia.
One common theme is the clash of different magical systems. Harry Potter has its own brand of magic with wands and spells, while Buffy has slayer powers and a different kind of magic related to demons and the supernatural. Fanfictions often explore how these two types of magic interact when the characters meet.
A common theme is the clash of different magical systems. The conjuring skills from one world and the magic in Harry Potter are very different. So often there's a theme of characters trying to understand and adapt to the new magical rules. For example, in many fanfics, a conjurer might struggle to understand how spells work in Hogwarts compared to their own conjuring methods.
The theme of identity is also prevalent. The fem Harry Potter has to figure out who she is in a world that has certain expectations. With the crossovers, there are additional factors that influence her identity. She might have to balance her Hogwarts self with the new elements introduced from the other fictional universes she is crossed over with.
Power is a major theme. How the powerful characters from both universes interact and deal with power is often explored. For example, characters like Voldemort and Rhysand might be pitted against each other in some fanfictions. Friendship is also a theme, as characters from both sides form new alliances. In many stories, a Hogwarts student might become friends with a fae from Acomaf, and they learn from each other's strengths and weaknesses.
Another theme is the clash of cultures. For example, if Harry is adopted into a non - magical world like a superhero universe, there will be a contrast between the magical and non - magical ways of life. It's about how Harry and the other characters adapt to this difference. For instance, in a crossover with the Marvel Universe, Harry has to learn about modern technology and superhero ethics while still having his own magical abilities and values from the wizarding world.
One common theme is the clash of cultures. The magical cultures in Harry Potter and Transvanya are quite different. For example, the way magic is taught in Hogwarts compared to how it's practiced in Transvanya. Another theme is the idea of cooperation. Often, the characters from both worlds have to work together to solve a big problem, like a powerful dark magic that threatens both universes.
One common theme is the exploration of unexpected relationships. The MPreg aspect often leads to new and unanticipated connections between characters.