In a self - insert as Tony Stark fanfiction, a great self - insert character has to be interesting. They can't just be a passive observer. They need to have their own goals and dreams. For instance, they might dream of making a big impact on the world with their own inventions someday. Their personality should also mesh well with Tony's. If Tony is sarcastic, your character could be someone who can give it right back to him in a friendly way. And don't forget about backstory. A detailed backstory can make the character more three - dimensional and help the reader understand why they are the way they are in the story.
First, think about your character's backstory. For example, where they come from, their family situation. Then, consider their special abilities or skills that would make them stand out in the Percy Jackson world. Maybe they have a unique power related to water like Percy, but with a different twist.
First, think about their semblance. It should be something that fits within the RWBY universe's rules of magic and power. For example, if it's a power related to nature, explain how it interacts with the existing Grimm and Dust in the world. Then, consider their backstory. Maybe they grew up in a small village on the outskirts of Vale that was constantly under threat from Grimm. This would shape their personality as someone who is tough and determined.
To write a believable self - insert character in One Punch Man, start with giving them a clear motivation. If they're a fan of Saitama, it could be to meet him and learn from him. Also, give them some weaknesses. Maybe they're not very physically fit or they're clumsy. This makes them more relatable. Another aspect is to show their reaction to the strange world of One Punch Man. For example, they could be shocked by the powerful monsters at first.
To create a believable self - insert character, start with your own personality traits and exaggerate or modify them for the Marvel world. For example, if you're a very organized person in real life, your character could be a strategic mastermind in the story. Also, give your character a backstory that explains how they got involved with the Marvel universe. It could be something like they were at the wrong place at the wrong time during an experiment gone wrong.
A self - insert in One Punch Man fanfiction often has the trait of courage. It takes a lot of courage to face the kind of threats that exist in this universe. Another trait could be resourcefulness. They might not have Saitama's overwhelming strength, so they need to be resourceful in battles. They may also possess a sense of justice. This would drive them to fight against the evil monsters. Moreover, they could be a bit of an underdog. Starting out as a relatively weak character compared to the likes of Saitama and Tatsumaki, but gradually growing and improving throughout the story.
One great character archetype for a self - insert in One Punch Man fanfiction is the 'brave but clumsy' type. They have the courage to face villains, but their clumsiness often gets them into comical situations. It can be really fun to write how they interact with the more serious and powerful characters in the series. Also, the 'lonely genius' archetype can work well. They are highly intelligent and have unique powers, but they prefer to work alone until they meet the heroes in One Punch Man and start to open up.
They could stand out by their backstory. If they come from a different part of the non - magical world or have a really strange family history related to magic. Say, their family was once part of a secret dark magic cult but they didn't know until they entered the wizarding world. This would give them a different perspective and make them stand out. Also, their attitude towards the existing power structures in the wizarding world, like being very critical of Dumbledore's decisions from the start, would make them distinct.
Another way is if the self - insert character is from another dimension and gets stranded in the Avengers' world. They have an Infinity Stone that is malfunctioning, and the Avengers offer to help. In the process, they learn about each other's cultures and powers. The self - insert could teach the Avengers some unique combat techniques they have from their own dimension.
Give your self - insert character a unique hobby. For example, if you make them a collector of rare sea shells. This could lead to interesting interactions with Nami, as she might be interested in using these shells for navigation or just be curious about their beauty. Also, give them a distinct personality trait like being extremely superstitious. This would contrast with Nami's more practical nature and create some fun and comical moments in the fanfiction.