First, research both the character of Kit and the world or characters you want to cross him over with. Know their traits, backstories, and what makes them unique. For instance, if you're crossing Kit with the characters from 'Hotel', understand the dark and often seedy nature of the Hotel and how Kit would react to it.
One idea could be to cross Kit with a character from another AHS season. For example, Kit meeting the witches from Coven. He could bring his own brand of mystery and charm to the witchy world. Maybe he gets caught up in their power struggles.
First, decide which other universe or story you want to crossover with. Then, research both 'ahs coven' and the other element thoroughly. This will help you understand the characters, settings, and rules of both. After that, come up with a basic plot idea that involves the crossover. For example, if you're crossing with 'Buffy the Vampire Slayer', think about how the witches and the slayer could interact. Start with a strong opening scene that sets the stage for the crossover, like the coven witches suddenly appearing in Sunnydale.
First, choose the two (or more) shows or universes you want to cross over. For AHS, think about which season's theme or characters would work best. Then, come up with a basic plot idea that combines the key elements of each. For example, if crossing with 'Game of Thrones', you could have a plot where the power struggles in GoT meet the horror elements of AHS.
First, know the 'American Horror Story' universe well. Watch all the seasons you want to base your OC in. Then, create your OC. Decide on their appearance, personality, and backstory. For example, if it's for 'Hotel' season, your OC could be a vampire hunter with a tragic past that led them to hunt vampires. Next, think about the plot. How will your OC interact with the existing characters and the setting? You can start with a simple idea like your OC checking into the hotel for a specific reason and then things start to go wrong.
To start writing a chara crossover fanfiction, you should start with brainstorming ideas for how the characters will interact. Will they be friends or foes at first? Also, think about how the different rules and worlds of the original characters will blend or clash. For example, if you're crossing a magical character with a non - magical one, how will that work? Sketch out a rough outline of the story, including the beginning, middle, and end. You can start with a simple premise like 'What if these two characters met?' and then build on it. Consider the character arcs for each of the crossed - over characters. How will they change during the story?
Begin by brainstorming ideas. Think about what would happen if the 'legion' met a different group of characters. You can draw inspiration from other crossover fanfictions you've read or movies/TV shows you've seen. After that, develop your characters. If you're bringing in characters from different universes, give them new dynamics. They might be initially suspicious of each other but then learn to work together. And don't forget to set the scene. Describe the new world that is created by this crossover, whether it's a mix of the 'legion' world and another or a completely new place where they all end up.
To start writing 'Battletech Crossover Fanfiction', begin by choosing a crossover that has potential for great stories. Say you pick 'Battletech' and 'Full Metal Panic'. Research both universes thoroughly. Next, create a strong plot. Maybe the mechs are being used in a war on a planet similar to the one in 'Full Metal Panic'. Develop your characters well, like how a Battletech pilot would react to the situations in the other universe.
Begin by exploring the personalities of Robin and the character he is crossing over with. If it's, say, Robin and Supergirl, understand how Robin's detective skills and combat training would interact with Supergirl's superpowers. You can start with a small encounter between them, like they meet by accident and then gradually build up to a bigger adventure. Also, don't forget to add some conflict, whether it's internal (Robin struggling with his own insecurities) or external (facing a powerful enemy).
Begin by creating a character profile for Android 21 in this new crossover setting. Consider her goals and how they might change. Also, establish the rules of the new world she's in. If it's a world of magic, how will her powers interact with magic? You can start with a simple scene, like her arrival in the new world, and build from there.
One popular AHS Crossover Fanfiction might be one that combines 'American Horror Story' with 'Stranger Things'. It could involve the unique horror elements from AHS and the otherworldly mysteries of Stranger Things. Maybe the characters from both shows have to face a new, combined threat.