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.
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.
One idea could be that Ash and May both enter a new Unova - based Pokémon tournament. Along the way, they discover a new and rare Pokémon species that is crucial to the balance of the Unova ecosystem. They have to team up not only to catch it but also to protect it from a group of poachers. This would bring in elements of adventure, friendship, and Pokémon - related action.
In such a fanfiction, Ash and May could encounter new and rare Pokemon in Unova. They might face tough battles against powerful trainers and gym leaders. For example, Ash could use his Pikachu in unique strategies against Unova's electric - type Pokemon that have different abilities compared to those in other regions.
There could be a new, unknown group of villains in the fanfiction. They might be after a special type of Pokemon that is native to Unova. These villains could be using underhanded tactics to catch these Pokemon, and Ash and May would have to uncover their motives and stop them. For instance, they could be trying to use the power of these Pokemon for their own selfish gains, like taking over Unova's Pokemon centers or disrupting the Pokemon league.
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 interesting plot point could be Ash and May encountering a rare and powerful Unova Pokémon that they have to work together to catch. This could test their teamwork skills and knowledge of Pokémon.
One possible scenario in this fanfiction could be that Ash has to overcome his toughest opponents yet in Unova. He might face trainers with unique and powerful Pokémon that he has never encountered before. His Pikachu would surely play a crucial role, using its speed and electric attacks to outwit opponents.
In Unova fanfiction, one difference in Ash could be his relationships. He might have more complex friendships or rivalries compared to the main series. For example, his bond with his Pokémon could be explored in greater depth, like how he trains and communicates with them on a more emotional level.
In this fanfiction, Ash and Dawn's adventures in Unova could be filled with new Pokemon encounters. Ash might bring his typical enthusiasm and determination, while Dawn could add her own unique charm and Contest skills. They could team up to face new challenges, like strong Gym Leaders in Unova. Their friendship would also likely develop further as they explore this new region together.