There could be a new character, a rival to Ash's dad from his younger days when he was an active Pokemon trainer. This rival could reappear in the fanfiction, causing some trouble or adding some drama to the story.
Perhaps in this fanfiction, Ash's dad was once a great Pokemon trainer but had to give it up for some reason. Now, as a fan, he lives vicariously through Ash. He could be the one who inspired Ash to start his journey in the first place. He might have told Ash all those amazing stories about Pokemon when Ash was a little kid, which planted the seed for Ash's love for Pokemon.
Ash's loss could lead to a change in his journey. Instead of just aiming for Pokémon battles and championships, he might focus more on self - improvement and understanding his Pokémon better. He could travel to new regions to learn different training techniques or seek out wise Pokémon trainers who can give him advice on how to avoid such losses in the future.
In many Pokemon fanfictions, Ash's father is often left as a mystery figure. Some fanfictions might create an elaborate backstory for him, perhaps making him a powerful Pokemon trainer in a far - off region. He could be someone who had to leave Ash and his mother for some noble or dangerous quest related to Pokemon.
Another of Ash's Pokemon like Charizard can have a proud nature in fanfiction. This pride can sometimes lead to conflicts with Ash, as it might not always follow his commands immediately. But it also makes Charizard a very determined fighter. When it finally decides to cooperate with Ash, it becomes an even more formidable force.
Pikachu is a very likely candidate. It's Ash's most iconic Pokemon and has a deep bond with him. Whenever Ash is in trouble, Pikachu often steps up to protect him.
If Red was Ash's father in a Pokemon fanfic, Ash might start with a Pikachu like in the original series, but it could be a special Pikachu that Red had some connection to. Maybe it was a Pikachu that Red had trained briefly or had a unique bond with.
Well, it could change the story in many ways. For example, he can directly understand Pokemon's needs and feelings. So he might be able to prevent some Pokemon from getting into dangerous situations more easily. He could also form stronger bonds with his Pokemon team, leading to more effective battle strategies as he knows exactly what they are capable of and what they are thinking.
One possible strongest team could be Pikachu, Charizard, Greninja, Lucario, Sceptile, and Infernape. Pikachu has been with Ash since the start and has a strong bond. Charizard is extremely powerful. Greninja has its unique form and great combat skills. Lucario is a very capable fighter. Sceptile was a strong addition to Ash's team in Hoenn. And Infernape showed great power in Sinnoh.