In a new Ash Unova fanfiction, the main villain could be a scientist who is conducting unethical experiments on Unova Pokémon. He believes that by fusing different Pokémon together, he can create the ultimate Pokémon. His experiments are causing harm to the Pokémon involved and are also disrupting the natural balance in the Unova region. Ash discovers what's going on and has to stop the scientist, not only to protect the Pokémon but also to save the Unova region from the potential disasters that could be caused by these abnormal Pokémon creations.
There might be a girl trainer who is very skilled in battling but has a shy personality. She initially challenges Ash to a battle and after that, they realize they have a lot in common. They start sharing tips about Pokemon training and soon become friends. This friendship could then lead to various adventures together as Ash explores Unova.
A powerful and greedy Pokémon collector could be the main antagonist. He wants to capture all the rare Pokémon in Unova for his own collection, regardless of the consequences for the Pokémon or the ecosystem. He sees Ash and May as obstacles in his path, especially when they try to protect the Pokémon they encounter.
Obviously, Ash is one of the main characters. Since it's about 'smart Ash', his intelligence will likely play a big role in the story.
It could be a Team Plasma - like organization that is causing trouble in Unova. They might be trying to steal Pokémon or disrupt the balance in the region, and Ash and May have to stop them.
He could defeat Trip. Trip is a well - known character in the Unova region. Ash might have finally outsmarted Trip in a battle with his Pikachu's speed and powerful electric attacks.
Well, it could be about Ash and Misty exploring the Unova region, facing new Pokémon and making new friends. Maybe they join some local Pokémon contests or battles in Unova.
In Unova - based fanfiction, if Ash gets involved with dragons, it could be an amazing story. Maybe he befriends a baby dragon Pokémon that has been separated from its family. Ash then has to protect it from poachers or other dangerous Pokémon. Along the way, he forms a strong bond with the dragon, and this bond could change his approach to Pokémon training completely. He might start to focus more on the emotional connection with his Pokémon rather than just battle strategies.
One possible plot could be Ash exploring the unique Unova Pokémon and forming a special bond with a rare Unova Pokémon like Zorua. He could face off against Team Plasma in a new way, perhaps uncovering a deeper conspiracy within the team. Another plot might involve Ash competing in the Unova League with a team of Unova Pokémon he has carefully trained, facing tough opponents and learning new battle strategies along the way.
A new villain could be a powerful and dark psychic - type Pokemon. This Pokemon could have the ability to turn Ash into a Pokemon as part of its grand plan to take over the Pokemon world. It sees Ash, who has always been a symbol of hope and a strong trainer, as a threat even in his human form. So, by turning him into a Pokemon, it hopes to disrupt the balance and order that Ash has been a part of maintaining.
A new villain, a mad scientist type, who is obsessed with the power of the Mega Buster. He wants to reverse - engineer it to create an army of robotic Pokémon with similar weapons.