One challenge is maintaining the integrity of both universes. For example, if you're crossing over Harry Potter with Star Wars, you have to make sure that the rules of magic and the Force don't clash in a way that makes the story unbelievable. Another is character consistency. Each character has their own personality, and when you put them together in a new setting, you need to keep that intact.
One challenge is his negative attitude towards Harry in the original story. It's hard to suddenly make him into a love interest. Another is his mysterious side. Writers need to figure out how to make his secrets fit into a romantic relationship. Also, his loyalty to the Death Eaters at one point and then to Dumbledore later is a complex web that's difficult to untangle when writing a romantic scenario with Harry.
The challenges are numerous. Firstly, in terms of world - building, you need to find a way to make Hogwarts and the Jedi Academy (or equivalent Star Wars settings) coexist in a logical way. Secondly, the gay relationship has to be developed in a way that respects the characters from both universes. Harry Potter characters have their own personalities and story arcs, and so do the Star Wars characters. Combining them in a romantic or sexual relationship requires a great deal of creativity. Moreover, you have to consider the fan bases of both franchises. Some fans might be resistant to this kind of crossover and the addition of a gay relationship, so writing in a way that can appeal to a broader audience while still staying true to the concept is quite difficult.
One challenge is merging the two different universes. Harry Potter has a world full of magic, with wizards, spells, and magical creatures. Peter Parker's world is more of a modern, urban superhero setting. Combining these two requires a lot of creativity to make it seem believable.
One challenge is combining different universes. Kingsman has a modern, spy - based world, while Harry Potter is a magical boarding - school - based universe and Merlin is from a more mythological - historical setting. Keeping the rules and tones of each consistent while merging them can be tough. Another is pleasing fans of all three. Fans of each franchise have specific expectations, and it's hard to meet them all in one story.
One challenge is merging the magic systems. Harry Potter has a very detailed and rule - based magic system, while Soul Eater has its own unique concept of souls and weapons. Writers need to find a way to make these two coexist without it feeling forced.
Maintaining the integrity of both universes is a big challenge. Fans of 'Harry Potter' and 'Star Wars' are very protective of their respective franchises. A writer has to be careful not to distort the core concepts, themes, or lore of either. For example, the rules of the Force in 'Star Wars' are very specific, and the same goes for the magic in 'Harry Potter'. Any deviation from these established rules can make fans unhappy. Additionally, the pacing of the story needs to be right. Since both series have their own pacing styles, finding a middle ground that works for a crossover can be tricky.
One common theme is identity exploration. Since it's a crossover, characters from different universes have to re - evaluate who they are in this new combined setting. In the context of slash, it often means exploring new relationship dynamics that are different from the original source materials.
One challenge is getting the characterizations right. Since it's a crossover, you need to understand the essence of each character from both shows. For example, if you're crossing 'Scandal' with 'The West Wing', the political ideologies and working styles of the characters are very different. Another challenge is creating a believable plot that can merge the two universes smoothly.
Character consistency is also difficult. In 'Scream', the characters have very distinct personalities. When bringing them into a new universe, their actions and reactions need to stay true to their original selves. For instance, Sidney's strong - willed and resourceful nature should be maintained even when she's facing new and different threats in the crossover story. And that's not easy when you're mixing different story elements and rules.
When writing these crossovers, pacing can be an issue. Since you're combining two different settings and storylines, you need to find a good rhythm. For instance, if you're doing a Fallout and Final Fantasy crossover, the more fast - paced action of Fallout and the often slower, more story - driven parts of Final Fantasy need to be blended well. And then there's the matter of making the crossover seem believable to the readers who are fans of both universes.