A really interesting plot idea could be that Strange's magic starts to seep into the My Hero Academia world, causing some quirks to mutate in unexpected ways. Maybe a character like Todoroki suddenly has his fire and ice powers combined in a new, magical way because of the influence. Another idea is that the Infinity Stones somehow end up in the My Hero Academia universe and the heroes have to figure out how to keep them safe from villains.
One cool plot could be a time - travel scenario. Dr. Strange uses his time - related magic to send some of the My Hero Academia characters back in time. They then have to interact with past versions of heroes and villains in their own world while also trying not to disrupt the timeline too much. It could lead to some really interesting character revelations and changes in the future of the My Hero Academia world.
A darker plot idea could involve a powerful villain who has somehow found a way to corrupt both universes. This villain uses the technology and powers from both My Hero Academia and the Justice League's worlds to create a doomsday scenario. The heroes must put aside their differences and combine their strengths to stop this new threat. This would involve a lot of character development as they learn from each other's methods of heroism and sacrifice.
One plot idea could be a villain who is secretly a double agent, working for the heroes all along. They infiltrate the villain group and gather information. Another idea is a hero who loses their quirk and has to rely on their wits and combat skills alone, like Batman in the DC universe. And a villain - hero team - up to face a greater threat that neither can handle alone.
An interesting plot could involve an anti - hero who has a hidden agenda that is not entirely evil but also not in line with the traditional hero goals. Maybe they are trying to expose a corrupt part of the hero society from within. They could form alliances with some villains who also have a vendetta against the corrupt elements. This would create a complex web of relationships and moral dilemmas.
One idea could be a crossover where the students from Little Witch Academia visit UA High. They could participate in a joint training exercise. The witches could use their magic in creative ways during combat scenarios, while the heroes-in-training show off their quirks. It would be a fun mix of different powers and personalities.
One popular type of My Hero Academia and Dr. Strange fanfiction might involve crossovers where the characters' powers interact in unique ways. For example, a story could have Dr. Strange use his magic to help Deku understand and control One For All in a different dimension. Another could be about the heroes of My Hero Academia visiting the Sanctum Sanctorum and learning about the mystic arts from Dr. Strange.
A fanfiction could focus on a special training exercise that goes horribly wrong. For example, a new type of quirk - suppressing technology is used during training, but it malfunctions and Class 1A has to rely on their non - quirk skills to survive and rescue each other. It would show their growth and teamwork in a different light.
Maybe a vampire villain who is trying to turn the heroes into vampires to create an army. The heroes have to figure out how to defeat this villain without getting bitten. They could use their quirks in creative ways, like using a fire - based quirk to repel the vampires.
A fun plot might be a chibi - sized adventure where the heroes get shrunk by accident and have to navigate through a regular - sized city. They would face challenges like crossing the street without getting stepped on, and trying to communicate with normal - sized people. This could lead to some really hilarious and heartwarming interactions.
A plot idea could be that a new, experimental quirk - erasing drug has a side effect of deaging those it comes into contact with. The deaged heroes then have to find a way to reverse the process before a major villain attack. They might struggle with things like not being able to use their quirks as effectively or having to rely on their pre - training instincts. Also, the relationships between the characters could be explored in a new light. For instance, Bakugo might have to learn to be more patient with a deaged Deku, which could lead to character growth for both of them.
You could write a fanfiction where one of the Illegals discovers a new power or ability that has the potential to change the balance in the underground world. This could lead to other groups either trying to recruit them or eliminate them. And as they navigate this newfound power, they also have to deal with their relationships within their own Illegals group and how it affects their dynamic.