The theme of redemption also shows up. Some fanfictions explore the possibility of the homunculi finding a way to be 'good' in the new crossover world. They might have new opportunities to make different choices and overcome their 'evil' natures from the original FMA story. This can lead to some really heart - warming and complex character development stories.
One common theme is identity. Since the homunculi are in a new crossover world, they often question who they are and their place in this new setting. For example, in many crossovers, they might compare themselves to the new characters they meet.
Power dynamics is another theme. When the homunculi cross over, their powers may be different or they may face new powers. This leads to a lot of conflict and negotiation of power. For instance, if they cross over into a world with magic, they have to figure out how their alchemical powers fit in.
There's also 'Homunculus in Another Realm'. In this fanfic, the homunculi are sent to a parallel universe. It has an interesting plot where they interact with new characters and face different challenges than in the original FMA world. The author does a great job of portraying their personalities in this new setting.
One common theme could be the clash of different magical systems. In Harry Potter, there's the magic based on spells and potions, while in FMA there's alchemy. Another theme might be the exploration of different cultures and values. The pride aspect could also play into characters showing their unique identities and abilities from both universes.
One common theme is identity. Since homunculi are often created rather than born, they struggle with who they are. Another theme is power. Homunculi usually have some special abilities, and the fanfictions often explore how they use or are misused. Also, acceptance by society is a big theme as they are different from normal beings.
One common theme is the development of their relationship. Since in the original series, their relationship is complex and evolving. Fanfictions often explore how they overcome obstacles in their relationship, like Edward's dangerous alchemist life.
One common theme is the exploration of Envy's complex emotions. Since Envy is a complex character in FMA, these fanfictions often try to dig deeper into how they feel towards the reader.
Often, there's the theme of redemption. Greed is not a completely 'good' character in the original FMA. In fanfiction, his relationship with the reader can be a catalyst for him to seek redemption or change. There's also the theme of adventure. The FMA world is full of danger and mystery, and the reader and Greed might embark on adventures together, facing various challenges along the way. This can range from fighting other alchemists to dealing with the secrets of the Philosopher's Stone.
Often, these fanfictions blend the dark and complex world of Fullmetal Alchemist with the idea of 'lust' which could be in terms of a character's desires or a new, alluring force in the story. They might also explore different character relationships and how 'lust' can either strengthen or disrupt them.
One common theme could be the exploration of envy's character traits. In Fairy Tail fanfiction, Envy from FMA might be inserted into the Fairy Tail universe, and the theme could be about how their powers interact. Another theme could be the conflict that Envy brings to the Fairy Tail world, perhaps causing chaos among the mages.
Some fma crossovers involve characters from DC Comics. Picture Batman or Superman in the world of FMA, dealing with the concept of equivalent exchange and the political intrigue in that world. It can lead to some really unique storylines and character interactions.
Some common themes include the search for humanity. OC homunculi may strive to understand and possess human qualities, such as emotions and empathy. The theme of family also exists. They could be searching for a sense of family or dealing with the concept of family in a world where they are often seen as outcasts. Additionally, there's the theme of fate. Do homunculi have a pre - determined fate, or can they change it? Fanfictions often play with this idea.