One idea could be an OC who discovers their psychokinesis quirk gradually. They start with small things like moving a pencil, then as they train, they can lift heavier objects. This can lead to an interesting story arc of self - discovery.
In a fanfiction, the OC with psychokinesis quirk could be in a world where such quirks are not fully accepted. They might face discrimination, which would add depth to the story as they fight for acceptance while also trying to control their powerful quirk. For example, they could be barred from certain places or events because of their quirk.
The OC could start as a shy and withdrawn character, afraid of their psychokinesis quirk. But as the story progresses, they gain confidence. For instance, at first, they might accidentally break things with their quirk and be scared, but later they learn to control it and become more self - assured.
One idea could be an OC with a sound quirk who can manipulate sound waves to create illusions. For example, in a battle, they make the enemy think there are multiple allies when it's just sound - based images. Another could be an OC that uses their sound quirk to communicate with animals, as different frequencies might be understood by them. A third plot idea is an OC with a sound quirk in a music - based society where their quirk gives them an edge in creating the most beautiful and powerful music, but they face jealousy from others who don't have such a useful quirk.
In a steampunk - inspired setting, the OC's transmutation ability could be used to transform gears and cogs into complex machinery on the fly. They might be a sort of inventor - hero, using their power to create amazing contraptions to solve problems, from flying machines to elaborate traps for villains.
One idea could be to make the character with the lightning quirk have a fear of water. This would add an interesting dynamic as lightning and water don't mix well. They could struggle to control their quirk when near water, and it could be a source of internal conflict for them.
One idea could be to create an OC (Original Character) who is related to the Prowler in some way and has a complex relationship with Spider - Man. For example, the OC could be a former ally of the Prowler who is now trying to reform and help Spider - Man fight crime in the neighborhood. This would add a new layer of drama and character development to the fanfiction.
Well, an idea could be that the male OC is a self - taught swimmer. He has a raw talent but lacks the proper form. The members of the Iwatobi Swim Club take it upon themselves to train him. As they do, he starts to teach them some of his unorthodox techniques that he developed on his own, creating a mutual learning experience.
The OC could have a special item or ability that allows them to absorb magic. Maybe it's a family heirloom or a unique power passed down through generations. In the fanfiction, this could be explored as the OC discovers the origin and true potential of their ability. They could then use this power to help their Fairy Tail comrades in battles, perhaps by absorbing the magic of enemies and using it against them.
One cool quirk idea could be 'Shadow Mimicry'. The user can blend into any shadow and move freely within the shadow realm, also being able to mimic the actions of those whose shadows they are in. It gives a lot of stealth and surprise attack possibilities in a fanfiction.
A fanfiction could focus on a new character with an explosion quirk who joins Naruto's team. This character might have a mysterious past related to a secret organization that was experimenting with quirks in the Naruto universe. Their explosion quirk would add a new dynamic to the team's combat strategies, and there could be a lot of fun interactions as they adjust to working together.
One interesting concept could be the unique combinations of quirks that result from the fusion. For example, if Deku were to fuse with a character who has a fire - based quirk, the new fused quirk might be something like the ability to shoot green - flamed arrows, combining Deku's original quirk with the fire element in a creative way.