He might use his knowledge of the supernatural world. If a creature has wronged him, he could find its weakness and use it against it. Like if a werewolf has been too aggressive towards him, he could use wolfsbane in a non - lethal way to teach the werewolf a lesson. This would be a form of revenge that is also within the rules of the supernatural world.
In many fanfictions, Gryffindors get revenge by standing up for justice and using their bravery and loyalty to overcome the obstacles. They might also team up with friends for a strategic plan.
He might use Stiles' knowledge of Scott. Stiles knows Scott better than almost anyone, so Derek can learn about Scott's likes, dislikes, and habits from Stiles. For instance, if Derek wants to give Scott a gift to win him over, he can ask Stiles what Scott would like.
In some fanfictions, Harry might expose Snape's past wrongdoings to the whole school. For example, if Snape had been unfair in grading or showing favoritism to certain students, Harry could find evidence and make it public. This would damage Snape's reputation among the students and teachers.
One popular 'Stiles gets revenge' fanfiction might be where he uses his intelligence to outwit those who have wronged him. For example, in a story where he was bullied by some supernatural beings in Beacon Hills, he could set up elaborate traps using his knowledge of the town's layout and the creatures' weaknesses. He might use his wits to make them look foolish in front of the whole town, which would be a great form of revenge.
Sookie might get revenge on Bill in a variety of ways depending on the fanfiction. It could be through some elaborate scheme or a sudden confrontation.
They can gather evidence. For instance, if it's about a cheating partner, finding text messages or photos that prove the infidelity. Then they can use this evidence to expose the cheater to family and friends. This is a simple yet effective way.
In some versions, Snape might use his knowledge of the Dark Arts to expose the wrongdoings of those who have wronged Harry. For example, if there are Death Eaters or bullies in Hogwarts who target Harry, Snape could reveal their secret plans or actions that are against the school rules or the wizarding law.
He could overcome it through the support of his friends. If his friends are there for him, they can offer a safe space and positive reinforcement. For instance, they can remind him that he is not to blame for the abuse.
Well, Stiles is used to being in a small, tight - knit group in his own story. In the Avengers, he'd start as an outsider. But his loyalty and determination would win over the others. He could add a new dimension to their relationships, being the one who is constantly asking questions and making them re - evaluate their assumptions. For example, he might question the Avengers' black - and - white view of good and evil based on his experiences in his own world.
On the other hand, Stiles is also known for his quick thinking. He might start to try and bargain with Peter. He could offer to help Peter in some way if Peter lets him go. For example, if there's a problem in the supernatural community that Peter is facing, Stiles could say he'll use his human ingenuity to solve it. Also, Stiles could be angry. He might start shouting at Peter, calling him out on his actions, and trying to make Peter see how wrong this is.