One great 'Fullmetal Alchemist Scar Crossover Fanfic' is 'Scar's New Path'. It takes Scar on an adventure where he teams up with characters from another universe. The story is really engaging as it delves into Scar's character development in this new and strange setting.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can search specifically for Fullmetal Alchemist Scar crossovers. Just use the search bar and type in relevant keywords. Another option is FanFiction.net, which also has a wide range of fan - created stories.
A good 'Fullmetal Alchemist Scar Crossover Fanfic' should first of all stay true to Scar's character. His backstory, his beliefs and his unique abilities should be respected. For example, if he's made to be too out - of - character, like suddenly being overly friendly without a proper reason, it won't feel right.
One plot idea could be Scar crossing over into a world where alchemy doesn't exist, and he has to adapt to a completely different form of combat and magic. Another is a crossover with a modern - day world, and Scar has to deal with modern technology and society while still holding onto his beliefs.
One good fanfiction could be 'The Unlikely Alliance'. In this, Edward and Scar start off as enemies but are forced to work together due to a common threat. It shows their growing understanding of each other's motives. Another is 'Redemption and Reconciliation' which delves into Scar's past and how Edward comes to terms with it. There's also 'A New Path' where they journey together to find a way to reverse the damage of alchemy in their world.
One idea could be that Naruto somehow ends up in the world of Fullmetal Alchemist and his chakra-based attacks are mistaken for some form of alchemical explosions. For example, his Rasengan could be seen as a condensed form of alchemical energy that explodes on impact.
One popular character is Scar. His unique brand of alchemy and his backstory of revenge can create some really intense crossovers. Edward Elric, as mentioned before, is always popular. He can be paired with characters from other series to have some amazing adventures. Hohenheim is also a character that shows up in a lot of crossovers. His long life and his connection to the Homunculus can add a lot of depth to crossover stories. He can interact with other powerful or long - lived characters from different universes in very engaging ways.
One interesting concept could be the combination of different alchemical abilities from various characters in different universes. For example, if a character from another anime with a unique power system crosses over into the Fullmetal Alchemist world, it could lead to new alchemical reactions and techniques. Another concept might be the exploration of how different cultures and moral codes interact. Characters from different fictional worlds might have different views on equivalent exchange, which could create some really thought - provoking scenarios. Also, the idea of crossovers can introduce new relationships between characters. Characters who have never met before might form alliances or rivalries based on their own goals and personalities.
A plot could involve the Avengers trying to understand the concept of alchemy. Maybe Tony Stark becomes really interested in it and tries to incorporate it into his tech. Meanwhile, the Fullmetal Alchemist characters are in awe of the high - tech world of the Avengers. They could end up sharing knowledge and skills to take on a powerful foe that neither could defeat alone. For example, a powerful demon from the Fullmetal Alchemist world that has found a way to use advanced weaponry from the Avengers' world.
Well, at first, there's a lot of distrust. Edward is suspicious of Scar's motives and his use of alchemy. Scar has his own grudges against Edward. However, in fanfictions, things can change. They might start to communicate more. Scar could learn about Edward's past and his own struggles with alchemy. Edward might understand the pain of the Ishvalan people through Scar. This new understanding can lead to a more complex relationship, like a reluctant friendship or even a partnership in some cases. It's really fascinating to see how different authors explore this transformation.