One common trope could be the complex character development of the villain. In many such novels, the villain is not just pure evil but has a backstory that led them to their actions. Another trope might be the power struggle. The villain often has to compete with the hero or other antagonists for power, influence, or resources. Also, there could be the trope of redemption or self - realization, where the villain starts to question their own actions and motives as the story progresses.
Some common tropes in villain oc fanfiction include the 'seductive villain' trope. This is when the villain uses their charm or attractiveness to manipulate others. It can add an interesting dynamic to the story. The 'vengeful villain' trope is also quite common. They are seeking revenge for some past wrong done to them. And then there's the 'evil legacy' trope. The villain oc is following in the footsteps of an even greater evil from the past, and they are trying to live up to that reputation or complete some unfinished evil business.
One of the best tropes is the 'Underdog Triumphs'. It's inspiring to see a character who starts with little chance of success overcome all odds. For example, Harry Potter was an orphan living in a cupboard, but he managed to defeat the powerful Voldemort. Another great trope is 'The Chosen One'. It gives a sense of destiny and importance to the character. Frodo in 'The Lord of the Rings' was the chosen one to carry the One Ring to Mordor. And 'The Redemption Arc' is also wonderful. Zuko from 'Avatar: The Last Airbender' had a great redemption arc where he went from being a villain to an ally.
The power - up trope also appears in Emerald fanfictions. Writers might give her new powers or enhance her existing ones, and then explore how she uses these new abilities. It could be related to her facing a greater threat or just her personal growth within the story.
One of the best tropes is the 'Underdog Triumphs'. It gives hope and is very inspiring. For example, in 'Rocky', the main character, who is an underdog, manages to go the distance against a much stronger opponent. As for the worst trope, the 'Damsel in Distress' can be quite tiresome. It often portrays women as helpless and in need of male rescue all the time.
Well, there's the trope of the 'outsider villain'. This is an OC villain who doesn't fit into the normal hero - villain dynamic in the 'Boku no Hero Academia' world. They might have a completely different view on how things should be. Then there's the 'sympathetic villain' trope. Despite being a villain, the writer makes the readers feel sorry for them because of their past or current situation. Also, the 'mastermind villain' who is always one step ahead of the heroes is a common one.
One of the best tropes is the 'Angel and Human Bond'. It shows the unique relationship between Castiel, an angel, and the human Winchester family. Another great one is 'Redemption Arc' for Castiel, where he tries to make up for his past mistakes. 'Soulmate' tropes are also popular, imagining Castiel having a destined connection with someone in the Supernatural universe.
Well, the 'road trip' trope can be really good in Alycia and Eliza fanfics. They go on a journey together, facing different challenges along the way. The 'time - travel' trope is also interesting, as it allows for different settings and interactions. And the 'unlikely allies' trope, where they have to team up despite their differences.
The 'Reunited and it Feels So Good' trope is quite popular. Fans love to see Tony and Ziva come back together after a long separation and pick up where they left off. It gives a sense of closure and new beginnings.
The 'Found Family' trope is great. It shows that family doesn't have to be blood - related, like in 'Guardians of the Galaxy'. The characters from different backgrounds come together and form a strong bond. A bad trope is 'The Prophecy'. It can sometimes feel like the characters are just following a set path without much free will, and the story becomes too predictable.