One common theme is power - making Ash more powerful than in the original series. This can be through new training methods or special Pokemon he gets.
Leadership is often a theme too. Ash becomes a leader among trainers, guiding others and showing them how to be better. He's not just a lone wolf but someone who inspires others with his badass attitude and skills. This could be seen when he forms a team of trainers to take on a powerful villain or when he shares his knowledge of Pokemon training with newbies.
Revenge is also a theme sometimes. Ash might seek revenge on those who wronged him or his Pokemon in the past. He then becomes a badass as he goes after them with a vengeance. For example, if a powerful trainer once defeated him unfairly, he'll train hard and come back to defeat them in a spectacular showdown. Another aspect is the exploration of uncharted regions. Ash in these fics often discovers new areas with new types of Pokemon and challenges, which helps in his transformation into a badass trainer. He has to adapt quickly and use his skills to survive and thrive in these new environments.
There are also often appearances from various Gym Leaders. They can serve as either allies or rivals to Ash. For instance, a Gym Leader might challenge Ash to a battle to test his newfound power, or they could join forces with him to take on a greater evil that threatens the Pokemon world.
One common theme is Ash's growth. Writers like to show how he matures from a novice trainer to a more experienced and wiser one. Another theme is friendship. His relationships with his Pokemon and human friends are often explored, like how they support each other in tough times.
The discovery of new Pokemon species is also a common theme. Writers like to create new and unique Pokemon for Ash to encounter. This adds an element of surprise and adventure to the fanfiction, as Ash has to figure out how to interact with and potentially catch these new Pokemon.
One popular 'badass Ash' Pokemon fanfiction is 'A New Beginning for Ash'. In this fic, Ash returns to Kanto with newfound skills and a more assertive attitude, taking on challenges in a whole new way. He has some epic battles against gym leaders who are also much stronger than in the original story.
One interesting plotline could be Ash becoming a super powerful trainer overnight in the fanfiction. Maybe he discovers a new type of Pokemon power that gives him an edge in battles.
One common theme is family. Since Delia is Ash's mother, the fanfiction often emphasizes the family bond between them. Another theme could be growth. Ash grows as a Pokemon trainer, and Delia might grow in her understanding of Ash's world.
The exploration of the Pokemon world is another theme. These fanfictions usually don't just focus on the harem aspect but also on Ash's adventures in different regions, his encounters with new Pokemon species, and his participation in Pokemon contests or battles. This combination of harem, romance, and Pokemon - related adventures makes these fanfictions appealing to many readers.
One common theme is friendship. Given their different backgrounds, their journey to become friends is often explored. Another is the idea of different views on Pokemon. Ash is more about battles and winning championships, while N has a more philosophical view. This contrast is often a central theme.
Common themes include Ash's evolution as a trainer. He might face challenges that force him to adapt and improve his training methods. Adventure is also a big part. Ash could embark on a quest to find a legendary Pokemon or to solve a mystery that plagues a particular region. Additionally, relationships play a role. This could be his bond with his Pokemon or new relationships with other trainers or characters in the Pokemon world.
One common theme is loyalty. The Pokemon in the harem are often extremely loyal to Ash, following him everywhere and being willing to protect him at all costs. Another theme is friendship. The relationships are based on deep friendship that has elements of a harem, like the Pokemon all wanting to be close to Ash. Growth is also a theme. Ash may grow as a trainer as a result of his interactions with his Pokemon harem.