It could be the classic villains from the original series like All For One. He might be interested in baby Deku's potential quirk. Another could be Shigaraki, who might see baby Deku as either a threat or an opportunity to disrupt the hero world in a new way.
One interesting concept could be the idea of baby Deku having unique interactions with villains. Maybe the villains are unexpectedly protective of him, which is a contrast to their usual evil nature. It could also explore how baby Deku's innocence affects the villains' plans or makes them question their actions.
Perhaps there is a group of characters. There could be a mentor figure who has a high power level and helps the protagonist, who starts with a much lower power level. And there might be antagonists with their own distinct power levels that pose a threat to the main characters.
Well, it could have various unique features. Maybe it has a complex power system where characters have different power levels that drive the plot. For example, the power levels might determine the social hierarchy in the story world.
In Naruto fanfiction, power levels can vary greatly. Some fanfictions might boost the power of a character like Naruto himself, making his already strong Rasengan even more powerful, perhaps with new elements added. Others might focus on secondary characters and give them powers on par with the main characters. For example, a fanfiction could make Rock Lee able to use some form of ninjutsu on top of his taijutsu skills, which would significantly increase his power level in that fictional story.
Well, you could start by looking at the characters' abilities, skills, and the scope of their influence. Also, consider their achievements and how they fare against opponents.
In the original Power Rangers story, the main villain was Rita Repulsa. She was an evil space witch who was imprisoned on the moon but managed to send her minions to Earth to cause trouble.
The villains in the Power Rangers Original Story often come from other dimensions or planets. They are usually power - hungry and want to conquer Earth for its resources or just for the sake of ruling over it.
In Harry Potter fanfiction, power levels can vary greatly. Some characters might be depicted with enhanced magical abilities, like being able to perform extremely complex spells with ease. For example, a fanfic might show Hermione with the power to not only master all the spells in the Hogwarts library but also create new ones. Another aspect could be in terms of combat magic, where some characters are made so powerful that they can take on multiple dark wizards at once and emerge victorious.
The power levels in such fanfics can vary greatly depending on the author's imagination. Some might have a simple scale, while others could have a complex and unique system.