One potential role could be a love interest. They might fall in love with one of the Avengers, like Black Widow or Hawkeye, adding a romantic sub - plot to the story. Another role could be as a mentor. If the OC is very experienced in a certain area, like ancient magic, they could teach Doctor Strange new things.
Maybe an alien from a planet that was previously unmentioned in the MCU. This alien OC has a special connection to the power of the Infinity Stones and teams up with Thor because they realize that Thor is a key figure in the battle against Thanos. Their knowledge of the Stones could be crucial in the fight.
Peter could be the young, enthusiastic addition. His quick thinking and acrobatic skills would be valuable. Gwen, on the other hand, might be the scientific mind, coming up with strategies based on her knowledge. In fanfiction, they could be the ones to discover a hidden plot against the Avengers.
Often, an 'oc' (original character) can be a new friend to the Disney characters. For example, in a fanfiction set in the world of 'Frozen', an 'oc' might be a villager who has a special power to control the weather in a different way than Elsa. This new character can then interact with Elsa and Anna, creating new storylines.
Reading such fanfiction can have a negative impact on your mental state. It might make you feel sad, depressed, or overly worried about the character. It can also desensitize you to the seriousness of suicidal thoughts and behaviors.
There could be an ancient evil entity that has been awakened. This entity has the power to corrupt minds and cause destruction on a large scale. It targets the Avengers because they are the most powerful force on Earth that can oppose it. Daisy Johnson has to use her powers not only to fight the entity physically but also to resist its mind - corrupting influence, while the rest of the Avengers try to find a way to banish the entity back to its slumber.
First, give him a clear backstory. For example, if he has superpowers, explain how he got them. Was it an accident, genetic, or something else? Second, give him flaws. He can't be perfect. Maybe he's too impulsive or has a fear of heights which can create interesting situations in battles. Third, give him relationships. He could have a family member he's trying to protect or an old friend who has turned bad.
One common theme is the outsider - within concept. The OC is usually an outsider who then becomes part of the Avengers' world, and the harem forms around that dynamic. Another theme is the exploration of different powers and how they interact. For example, if the OC has a unique power, how does it mesh with the powers of the Avengers in the context of the relationships.
One common theme is friendship - turned - romance. Usually, two female characters start as friends or comrades in the Avengers - related setting and then their relationship evolves into something more romantic.
There's also 'OC Among the Avengers'. This fanfiction stands out because it focuses on how the OC overcomes personal challenges while interacting with the Avengers. It's full of character - building moments and interesting relationships, making it a top pick for Avengers OC fanfiction lovers.
Well, if an OC (original character) falls into Avengers fanfiction, they might end up joining the Avengers' team. Maybe they have some unique power that catches the attention of Iron Man or Captain America. For example, if the OC has the ability to control time, it could be a great asset during battles against villains like Thanos. They could help in coming up with new strategies and even form new relationships with the existing Avengers characters.