Imagine that the Avengers' tower is transported into the Pokemon Go world. The Avengers are confused and have to figure out how to get back to their own universe. Meanwhile, the local Pokemon are both curious and a bit scared of these strange new beings. The Avengers start to learn about Pokemon battles and how to catch Pokemon. They form alliances with some of the more intelligent Pokemon species and together they face off against a group of villains who want to use the Avengers' technology to take over the Pokemon Go world.
There could be a fanfiction where a group of Avengers are turned into Pokemon. Captain America could become a Blastoise, for example, because of his leadership and strength. Iron Man could be a Porygon - Z, representing his technological prowess. They have to learn how to be Pokemon while still retaining their human memories and values. They team up with Pokemon trainers to stop an evil syndicate that is trying to create an army of mutant Pokemon. The Avengers - turned - Pokemon use their unique powers and the knowledge of their human selves to save both the Pokemon Go world and, ultimately, their own universe.
The plot might involve a villain who has the ability to control both technology and Pokemon. The Avengers are called in because their experience with high - tech threats is needed. They meet up with Pokemon like Charizard, who can fly them around and provide firepower. Meanwhile, Pokemon trainers teach the Avengers about the different types of Pokemon and how to use their strengths. For instance, Black Widow could be paired with an Eevee that evolves into Sylveon and uses its fairy - type moves to help in battles. Together, they work to stop the villain from taking over both the Pokemon world and potentially other dimensions.
One interesting plot point is when the Pokemon's natural abilities are combined with the Avengers' technology. For example, when Squirtle's water guns are enhanced by Iron Man's suit technology. It creates a really cool and unexpected effect.
In a fanfiction where the Avengers go to Hogwarts, there would be a clash of cultures. The Avengers are used to a world of high - tech and superpowers based on science, while Hogwarts is all about magic. Iron Man would likely be skeptical of magic at first, but as he sees the power it holds, he might start to think of ways to integrate it with his technology. The students at Hogwarts would be in awe of the Avengers, and the Avengers would have to learn to respect the magical world's traditions.
A cool plot could be that Ash turns into a Eevee. Since Eevee can evolve into multiple forms, Ash - as an Eevee - would constantly be in a state of potential change. Other Pokemon might try to influence his evolution in different directions. His friends would be on a quest to find a way to turn him back, but in the process, Ash - as Eevee - discovers that he can access some of his old human memories and use his strategic thinking in Pokemon battles. This gives him an edge in the wild and helps him protect himself and his new Pokemon friends.
One interesting plot could be that the Young Justice team gets accidentally transported to the Avengers' universe. They initially face misunderstandings as the Avengers are suspicious of these new, young heroes. But then they realize they have a common enemy. For example, a powerful villain is trying to take over both universes. So, they must combine their skills and resources to stop the villain. The Young Justice members' unique powers and the Avengers' experience would make for a great dynamic.
I think Thor and Zapdos would be an amazing pairing. They both have control over electricity in a way. Thor could ride Zapdos into battle, and they could combine their lightning attacks for a devastating blow. Also, Black Widow and Umbreon. Black Widow is a stealthy assassin, and Umbreon is a nocturnal Pokemon that can use dark - type moves and has good stealth capabilities. They could work together on covert missions, with Umbreon using its moves to create distractions while Black Widow takes out enemies.
One plot idea could be that a powerful Pokemon is corrupted by an Infinity Stone - like object. The Avengers, who are familiar with the power of the Stones, team up with the Pokemon Champions to purify the Pokemon. The Champions know how to communicate with Pokemon on a deeper level, which helps in the process.
One way to combine them could be through a crossover device. For example, a powerful Pokemon like Mewtwo could accidentally open a portal to the Avengers' universe. Then, the Avengers might mistake the Pokemon for some kind of new alien threat. They would try to contain it, but soon realize that the Pokemon has no malicious intent. Meanwhile, the Pokemon trainer who follows Mewtwo through the portal has to team up with the Avengers to find a way back home and also deal with any villains in the Avengers' world that might try to use the Pokemon for their own gain.
It could be that Will Solace has some kind of power or knowledge that the Avengers need, so they go after him to recruit or get information from him.
Some pokemon go fanfictions focus on the relationship between the trainer and their starter Pokemon. Like a story where a trainer's Charmander evolves into Charizard and they go through a rough patch because the Charizard becomes too powerful and hard to control. But through love and patience, they get back on track and become an even stronger team.