What are some interesting ideas for 'My Hero Academia' fusion quirk fanfiction?

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.

One idea could be that Izuku's quirk is related to time manipulation. He could use it to slow down time during battles, giving him an edge in combat. For example, he could dodge attacks with ease and plan his counter - attacks carefully.

One idea could be a villain who can steal quirks and is secretly a former hero trainee who was wronged. They start stealing quirks to create a super - powerful army to take revenge on the hero society that failed them.

Perhaps a story where a Copy Quirk hero is framed for using villainous quirks they copied in self - defense. They then have to go on the run and prove their innocence. Along the way, they meet other outcasts and form an unlikely team. They use their copied quirks in creative ways to avoid capture and expose the real villain who set them up.

The 'Plant Symbiosis' quirk would be a great addition to a fanfiction. The individual with this quirk can form a symbiotic relationship with plants. They can communicate with plants, make them grow rapidly, and even use plants as an extension of their body for things like creating shields or lashing out at enemies. This quirk could bring a whole new element of nature to the story.

One idea could be Izuku struggling to control his shadow quirk at first. Maybe it has a mind of its own and he has to learn to cooperate with it. For example, in battles, the shadow could act independently, which might cause trouble but also surprise opponents. Another plot could involve Izuku using his shadow quirk to explore hidden or dark places. Since shadows can reach areas that are hard to access, he could use it for rescue missions or to find secrets in the city.

One idea could be a fanfiction where Deku's quirk suddenly mutates. Instead of just having One For All, he starts to develop an additional power related to it, like the ability to share a fraction of One For All's power with his friends temporarily to boost their own quirks in a time of great need.

A great plot could be that there is a mystery surrounding the origin of the dragon quirk. Is it related to some ancient power or a genetic experiment? The character sets out on a journey to discover the truth about their quirk. Along the way, they meet other characters with unique quirks and form alliances. They might also encounter villains who want to use their quirk for evil purposes, adding a layer of danger and excitement to the story.

Well, in my hero academia fusion fanfiction, the idea of fusing different hero costumes is cool. It could result in a new and stylish look that also has enhanced functionality. Also, the fusion of different hero agencies' cultures. Imagine a hero from a small, family - like agency fusing with a hero from a large, corporate - style agency. This could bring about a whole new set of storylines and power dynamics.

It can also expand the universe in terms of relationships. When Deku fuses with other characters, it can lead to different interactions with his friends, family, and teachers. For instance, his friends might be initially hesitant or overly excited about his new fused quirk, which can create various story arcs. Moreover, the fanfiction could explore how the fused quirk affects Deku's standing in the hero community, whether he is seen as more of a threat or a greater hope.