One common plot element is Izuku struggling to control his dual - natured quirk at first. Since fire and ice are opposite elements, it's a challenge for him to balance them. Another is that he might face discrimination or suspicion from others who are afraid of his powerful quirk. Also, there could be a lot of training montages as he tries to master using both elements effectively.
One great example could be 'The Green Blaze of Izuku' where his green fire quirk is used in creative ways during battles. It might show him developing unique combat techniques that utilize the green fire's properties, like how it can be shaped into various forms to either attack or defend.
Some characters might be immediately terrified. They could avoid Izuku or even try to drive him away. For example, classmates who don't understand his quirk might spread rumors about him.
Well, with a green fire quirk, Izuku would likely have to train in environments that can withstand fire. This means his training grounds would be more specialized. He might also need to study the chemical composition of his green fire to understand its properties better. For example, if it has some sort of special element in it that can be used against certain types of enemies. Training would also involve learning how to use the fire in different forms, like a thin stream for precision attacks or a large blast for taking on groups of foes. And he'd probably have to work on his endurance, as using the fire quirk might drain his energy quickly.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). Just search for 'Izuku fire and ice quirk' in the search bar, and it'll show you a bunch of relevant stories. There are also some good ones on Fanfiction.net, but the tagging system there might require a bit more digging.
In 'The Healer of UA', Izuku's healing quirk is more complex. It requires him to concentrate and visualize the injury being healed. He can also transfer some of his own stamina to the injured to speed up the process. This makes his quirk not only about physical healing but also about his own sacrifice and determination.
One great 'Fem Izuku has a Quirk' fanfiction is 'Powerful Ascent'. In this story, Izuku's quirk is a unique combination of telekinesis and energy manipulation. The author does an amazing job of exploring how a female Izuku would face the challenges in the hero academy with such a powerful quirk. It also delves into her relationships with other characters like Bakugo and Todoroki in a really interesting way.
In some fanfictions, Izuku might discover he has his father's quirk during a moment of extreme stress. For example, when facing a powerful villain that he couldn't defeat with his own quirk, suddenly a new power, which turns out to be his father's quirk, emerges.
His relationship with Bakugo would be very different. Instead of Bakugo looking down on Izuku for being quirkless, he might be jealous of Izuku's powerful fire quirk. This could lead to even more intense rivalries between them. With All Might, All Might might be more cautious in training Izuku as a fire quirk could be more dangerous to handle without proper control.
One unique aspect is that Izuku can often treat real - life situations like game scenarios. For example, he might view a villain fight as a boss battle, which gives a fresh perspective on the action. Another aspect is the leveling system that often comes with the gamer quirk. He can gain experience points and level up, which is different from the normal quirk development in the original series.