Often, the main character would be the one with the stretch quirk. They are usually the focus as they navigate the world of BNHA with their unique ability. There might also be a mentor figure, someone who has more experience with quirks and helps the stretch - quirk character develop their skills. And of course, there could be friends or allies who team up with the stretch - quirk character in battles or adventures.
In 'bnha rubber quirk fanfic', one unique aspect is how the rubber quirk interacts with the BNHA world's physics. Since the world has its own set of rules regarding quirks, the rubber quirk often defies normal physics in interesting ways. For instance, the elasticity might be used to store and release energy in combat. Also, the social implications are unique. A character with a rubber quirk may face different types of reactions from others, ranging from admiration to ridicule. And often these fanfics explore how the character overcomes such social hurdles while also mastering their quirk.
A fanfic with Izuku having a sand quirk could explore his new power dynamics. He would have to adapt his fighting style completely. Instead of using his original strength - based moves, he'd rely on the versatility of the sand. He could potentially use the sand to travel, like surfing on it. His relationship with other characters might also change. For instance, Bakugo might be even more envious of this unique quirk. And Izuku would have to learn how to use it subtly, perhaps by creating small sand particles to gather information without being noticed.
One interesting concept could be how the stretch quirk is used in combat. For example, the character with the stretch quirk might be able to reach far - off enemies or create barriers by stretching their body parts. Another concept could be the limitations of the stretch quirk. Maybe there are times when over - stretching causes pain or temporary loss of control. Also, the social implications within the BNHA universe. How do other characters perceive the one with the stretch quirk? Are they seen as useful in rescue operations or just a novelty in hero battles?
One idea could be to create a fanfic where a character has a quirk that allows them to manipulate time within the toon world. They could use it to fix mistakes or prevent disasters. Another idea is a quirk that lets a character bring toon characters to life in the real world, leading to all sorts of chaotic and fun adventures. And perhaps a quirk that enables a character to transform into any toon object, like a cartoon hammer or a bouncing ball for combat or utility purposes.
One common theme is family legacy. Since it's about inherited quirks, the idea of living up to or breaking away from the family's quirk - related reputation is often explored.
A plot for this fanfic could be that Izuku discovers his sand quirk at a crucial moment during a battle. From then on, he starts to train intensively with it. The story could focus on his growth as a hero with this new quirk. He might have to participate in special training sessions designed for quirks like his. There could be a tournament arc where he shows off his new abilities. However, he also has to deal with the fact that some people are skeptical of his sudden change in quirk, and he has to prove himself not only to his enemies but also to those who doubt him.
There are numerous 'bnha cartoon quirk fanfic' concepts. For instance, a fanfic about a character with a quirk that enables them to copy other people's quirks but with a twist - they can only use the copied quirk once. This leads to a lot of strategic thinking and interesting battles. Or a fanfic where a character has a quirk that makes them invisible but only when they're completely still. They join the hero training program and have to overcome the limitations of their quirk. Also, some fanfics focus on quirkless characters who develop artificial quirks, which is a really cool concept in the 'bnha' fanfic world.
One idea could be a hero with an illusion quirk who uses it to create false distractions during battles. For example, making the villains see an army of heroes when there are really only a few, causing them to waste their attacks and energy.
Maybe Deku could be the main character but with a temporary one - punch quirk. He could gain this quirk through some sort of experiment gone wrong. And he has to learn how to use it while still relying on his original 'One For All' quirk in certain situations. This would add a new layer of complexity to his character development.