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.
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.
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.
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.
In the search results provided, there were several novels that could be recommended to readers who liked revenge. Among them were " The Supporting Female is Poisonous "," Qiao Jin "," The Rich Family's Miserable Love: A Thousand Gold Doesn't Fall Out "," Favoring Xiao Meng's Wife "," Miserable Love "," The Older Sister Reborn as a Love Rival "," When I Transmigrate and Meet the Return of the Reborn Daughter of the First Born "," The Reborn Rich Family's Wife "," Mysterious CEO, Palm Love "," Secret Love Becomes Crazy: Provoking the Devil CEO, When the Wind Rises, The Reborn Devil Missy, Abducting Love, The Female Lead Is About to Turn Black, Quickly Get Dressed: A Scumbag or Not, Plan to Save the Male Lead, Reborn Scumbag: Dressed Dressed, His Canary, Desire to Control, Agarwood Pea, Blue of Rebirth, I Will Never Let You Go, Black and White, My Rich Lady, etc. These novels covered different topics and plots, suitable for readers who liked revenge.
In a school or work situation where someone cheats on a project, you could expose them in a really creative way. Like making a poster that shows all the evidence of their cheating but in a really comical and non - malicious way. You could use funny cartoons to illustrate what they did wrong. This way, they are embarrassed but it's also a bit of a laugh for everyone else. Also, it serves as a warning to others not to cheat.
You can focus on your own achievements. For instance, if your sister is mean about your grades, study hard and get excellent results. Show her that her mean comments can't stop you from succeeding.
A classmate of mine used to spread rumors about me. I found out that she was really sensitive about her grades. So, I worked extra hard and got the top grades in every subject. I then made sure she knew about it. It made her feel really bad because she couldn't compete with me academically.
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.