The climate in Alola might affect Charizard. Since it's a tropical region, it could make Charizard a bit more adaptable to warmer and more humid conditions. Maybe its fire - type moves will become even more powerful because of the abundant sunlight in Alola.
The different Pokémon in Alola could influence Charizard. It might learn new battle strategies by observing the local Pokémon. For example, some Alola Pokémon have unique ways of using their abilities. Also, the local culture in Alola, which is very much centered around Pokémon, could make Charizard more in tune with the community spirit there. It could start to be more friendly and cooperative with other Pokémon.
They might have all kinds of adventures. For example, they could explore the unique Alola regions, discover new Pokémon species that are native to Alola. Charizard might also have some interesting interactions with the local Pokémon, like friendly battles or just sharing the same space. Ash could use Charizard to traverse difficult terrains in Alola, like the volcanic areas.
One possible fanfiction could be about Ash bringing his Charizard to Alola for a special battle tournament. Ash and Charizard would have to adapt to the new environment and battle styles in Alola. They might face off against some of the unique Alola Pokémon and trainers, with Charizard's powerful fire - type moves being a real asset but also a challenge as they try to avoid causing too much destruction in the beautiful Alola region.
It could be that Ash believes Charizard's experience and strength can be useful in Alola. There might be some tough challenges in Alola that only Charizard can help him with. Also, Ash might want Charizard to experience a new environment and different Pokémon species.
In fanfiction, when Ash takes Charizard to Alola, they might have all kinds of adventures. Charizard could help Ash in battles against the unique Alola Pokémon. It could also be a chance for Charizard to interact with new Pokémon species and form new friendships or rivalries. Maybe it would even learn some new moves from the local Pokémon trainers or from the environment of Alola.
Perhaps there could be a plot where Charizard accidentally causes a wildfire in Alola. Ash then has to take responsibility and with the help of the local Pokémon and trainers, they work together to put out the fire and repair the damage. This would show the importance of environmental protection and how Ash and Charizard learn from their mistakes in a new region.
His Pokémon might become closer as they face new and unfamiliar situations together in Alola. They would rely on each other more for support and protection.
Charizard may start off as just a powerful protector. But as the story unfolds, it could develop more patience. For example, when Ash makes some hasty decisions in dangerous situations, instead of just acting impulsively, Charizard learns to hold back and guide Ash more gently. This shows growth in its character.
He could bring some Johto Pokémon like Houndoom. Houndoom is a Dark - type Pokémon that would add a new element to Alola's Pokémon diversity. Its intimidating presence and strong battle capabilities would surely make it a popular addition among trainers in Alola.
Professor Kukui is another common character. He serves as a guide and mentor to Ash in the Alola region. He might provide Ash with new Pokémon knowledge, especially about the unique Alola Pokémon species. And of course, there are the various Pokémon trainers that Ash meets and battles in the Alola region. These trainers can range from novice trainers just starting out to more experienced ones who pose a real challenge to Ash.
Ash and Greninja are the central characters. Ash, the Pokémon trainer, is the one responsible for bringing Greninja to the Alola region. Greninja, with its powerful and unique abilities, will be the focus as it experiences the new Alola environment. There might also be some secondary characters like Ash's friends in Alola who will interact with Ash and Greninja throughout the fanfiction.