Well, in creating believable character interaction in a Shirou Emiya Archer crossover fanfiction, you need to consider their backstories. Shirou has his experiences as a 'normal' person turned magus, and Archer has his own tragic past as a hero. These pasts can influence how they interact. For instance, Archer might be initially dismissive of Shirou's naivete, but as they face challenges together, he starts to see the value in Shirou's idealism. You can also use body language and dialogue. For example, Archer might cross his arms and give Shirou a skeptical look when Shirou proposes a risky plan. And their dialogue should be in - character, with Archer using more sarcastic remarks and Shirou being more earnest.
For creating believable character interaction between Shirou Emiya and Archer in a crossover fanfiction, it's important to think about their goals. Shirou's goal of being a hero of justice is something he holds dear, while Archer has a more complex view of heroism. When they interact, this difference can lead to some intense discussions. Also, consider their skills. Archer's archery skills and combat experience can contrast with Shirou's magic. They might train together, and during this training, their different teaching and learning styles can create interesting interactions. For example, Archer might be a tough teacher, pushing Shirou to his limits, while Shirou might be more patient in learning and try to understand Archer's methods better. All these elements combined can make their character interactions more believable.
One idea could be that Archer is transported to an alternate universe where Shirou has a completely different personality. Maybe Shirou is a villain in this world, and Archer has to figure out how to deal with him. Another plot could involve them teaming up to fight a powerful, new enemy that neither could defeat alone. For example, a powerful mage from a different dimension who wants to conquer their world.
They play with the differences in the universes. Let's say a crossover with a post - apocalyptic world. Shirou's skills and values would be tested in a whole new way. The writer has to create new challenges for him, like how he would deal with limited resources while still trying to uphold his heroic nature. Also, they might introduce new characters from the crossover world that can either help or hinder Shirou, adding more depth to the story.
For Artoria Archer, she might develop a greater sense of humanity. In the fanfic, she could start off as a rather cold and distant figure due to her archer nature. But through her interactions with Shirou Emiya, who is full of passion and determination, she could gradually learn to open up and show more emotions. For example, she might start to laugh at Shirou's silly jokes or show concern for his well - being in a more obvious way.
In a time travel fanfiction, Shirou Emiya might take Saber and Archer to a different era altogether. Maybe they end up in a time when magic was more abundant. Here, Saber could learn new forms of magic, Archer could find advanced weaponry from that time, and Shirou could gain a deeper understanding of the roots of his powers. They would face new challenges like dealing with different types of magical creatures and power - hungry mages.
To write a believable character interaction in a Sweeney Todd crossover, first, understand the personalities of the characters involved. For example, if crossing over with a heroic character like Sherlock Holmes, Holmes would be very observant of Todd's actions and motives. He would question Todd's every move. Todd, in turn, might be initially hostile towards Holmes as he sees him as a threat to his plans. You need to show how their different worlds collide. Holmes comes from a world of logic and deduction, while Todd is driven by revenge and madness.
Another way is to give your character a unique perspective or skill that Supergirl might be interested in. Say your character is an expert in Kryptonian history. Supergirl, being from Krypton, would be intrigued. They could then have a deep conversation about her heritage and how it relates to her life on Earth. This kind of interaction would be believable as it plays on Supergirl's own backstory.
Archer Emiya may become more adaptable in RWBY crossover fanfiction. Since the RWBY world has its own set of rules and challenges, he has to adjust. For example, he might start using RWBY - style tactics more often. He could also become more open - minded as he interacts with the diverse characters in RWBY, which is different from his more solitary nature in his original story.
One great 'archer emiya crossover fanfiction' is 'Fate/Grand Order: Archer Emiya's New Adventure'. It combines Archer Emiya with different timelines and characters in an exciting way. The story has great action scenes and character development.
To create a believable human character in a Zootopia crossover, you need to give them a clear backstory. For example, if they're a mechanic, explain how they learned their skills, what their family life was like. Also, consider their motivation for being in Zootopia. Are they there for adventure, or are they running away from something in the human world? Their reaction to the strange new world of Zootopia is also crucial. They should be initially shocked but gradually adapt in a believable way.
Study the body language and dialogue styles of both characters. If Nightmare is interacting with a more talkative character like Dante from Devil May Cry, Nightmare's more brooding and menacing presence can be contrasted with Dante's witty and confident banter. Their body language would also be different, with Nightmare perhaps having a more imposing stance while Dante is more relaxed but ready to strike at any moment.