Tony Stark as a villain would bring a whole new level of complexity. His backstory could be that he was rejected by the hero society in the My Hero Academia world and decided to take revenge. He'd use his skills to create a network of minions and build a secret lair. His battles with the heroes would be epic, as he'd constantly upgrade his technology to outwit them.
Another idea is that Tony Stark could be from an alternate universe where his technology is a form of quirk. He gets transported to the My Hero Academia universe. His charisma and intelligence would make him a very interesting character in this new world. He might even start his own hero agency, using his resources to train and support new heroes.
One possible story could be that Uraraka turns villain due to being corrupted by power. Maybe she starts to use her quirk for self - gain, like stealing valuable items and floating them away. She could form an alliance with other villains, believing that the hero society has failed her.
Well, a 'My Hero Academia Villain Killer' fanfiction can be really exciting. It often explores the darker side of the MHA universe. Some fanfictions in this genre might focus on a new character who has a vendetta against villains. They could introduce unique powers and moral dilemmas. For example, the character might struggle with the line between justice and revenge while taking on the most heinous villains in the series. It adds a whole new layer to the already rich MHA world.
Well, if Naruto with the Rinnegan were a villain in My Hero Academia fanfiction, it would be a huge shift in the power balance. His Rinnegan gives him access to a variety of powerful abilities. He could use the Asura Path to create mechanical weapons and attack the heroes. The heroes would need to band together and come up with new strategies. His motives as a villain could also be complex, perhaps influenced by his experiences in the Naruto world. This would add depth to the fanfic and make it a very interesting read as the heroes struggle to understand and defeat him.
One popular archetype is the power - hungry villain. They crave more and more power, like All For One in the original series. Another is the vengeful villain. They have a grudge against someone or the whole hero society and will stop at nothing to get their revenge. There's also the mad scientist type. They conduct unethical experiments, often creating dangerous things in the pursuit of knowledge or power.
To create a compelling villain in My Hero Academia OC fanfiction, first, give them a unique quirk. It should be powerful yet have some limitations. For example, a quirk that can control time but only for a few seconds at a time. Second, develop their backstory. Maybe they were once a hero-hopeful but were betrayed by the hero society. This would give them a reason to turn to villainy. Finally, give them a distinct personality. They could be charming yet extremely cruel, like the Joker from Batman.
She could be influenced by a villain's ideology. For instance, if she was convinced that the current hero system is unfair and only benefits the strong. She might start to target heroes who she thinks abuse their power. Using her quirk, she'd be a formidable foe as she can manipulate gravity around objects and people.
Another theme is the power of friendship, but in a twisted way. Sometimes Izuku as a villain has a group of loyal followers or partners who are with him not because he's a hero, but because they share his view of the world. It shows that even in villainy, there can be strong bonds between characters.
One reason is that the villains in 'My Hero Academia' are often very powerful and have unique abilities. In fanfiction, writers can take these abilities and put the villains in different situations, like teaming them up in unexpected ways or pitting them against new opponents. Also, the moral ambiguity of some villains makes for great storytelling in fanfiction.
Well, 'Fallen Hope' is one that stands out. It explores Deku's descent into villainy in a very compelling way, with lots of plot twists and character development.