Often, a theme is adventure. The presence of Legendary Pokemon in Ash's world in these fanfictions usually leads to grand adventures. They might journey to hidden places or face off against powerful foes together. Also, there can be a theme of self - discovery for Ash. Interacting with Legendary Pokemon can make Ash realize new aspects of his own capabilities and his role in the Pokemon world. For instance, if he teams up with Lugia, he might learn more about his ability to communicate with and understand Pokemon on a deeper level.
A common theme is the blurring of the lines between trainer and Pokemon. With Legendary Pokemon, Ash may not be in a typical trainer - Pokemon relationship. There could be more of an equal partnership. This can lead to interesting character development for Ash as he has to adapt to this new type of relationship. Additionally, the theme of mystery often surrounds Legendary Pokemon in these fanfictions. Ash might be on a quest to uncover the secrets of a particular Legendary Pokemon, like its origin or its true power.
I'm not sure as I don't typically read such fanfictions. But I would assume some common themes could be the exploration of a unique relationship between Ash and the legendary pokemon, perhaps some kind of power dynamic due to the legendary pokemon's abilities.
Protection is also a big theme. Often, Ash has to protect the female legendary Pokemon from villains who want to capture or harm it. This shows Ash's heroic side and also the vulnerability of the legendary Pokemon. In some stories, the female legendary Pokemon also protects Ash in return, highlighting the mutual care between them.
One common theme is the friendship between Ash and the legendary pokemon. Often, they form a special bond that helps Ash in his adventures. Another theme could be the power of the legendary pokemon and how Ash has to learn to handle it. For example, in some fanfictions, Ash might have to control the immense power of a legendary like Mewtwo without getting overwhelmed.
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.
We really shouldn't be focusing on the themes of 'pokemon ash and bayleef lemon fanfiction' as it likely contains adult - themed content. But for regular Ash and Bayleef fanfiction, themes can include the challenges they face together. For instance, they might encounter a new and powerful Pokemon species that they need to figure out how to deal with. Also, the theme of trust can be prominent. Ash has to trust Bayleef's instincts in battles, and Bayleef has to trust Ash's leadership. These are the kinds of positive themes that are much more appropriate and enjoyable to explore in the context of Pokemon fanfiction.
Since I don't encourage or promote such fanfictions that might be inappropriate, I can't accurately state the common themes. However, in general Pokemon fanfictions, common themes include friendship, growth, and the pursuit of Pokemon championships.
Articuno, Zapdos, and Moltres are quite common. Their elemental powers and the mystery surrounding them make for great fanfiction material. Ash might encounter them during his travels and have to either help them or face off against them in some way.
One common theme is the growth of Ash's character. Catching a Legendary Pokemon is no easy feat, and it often forces Ash to step out of his comfort zone, face his fears, and become a more mature trainer. For example, in many fanfics, he has to learn new battle strategies and ways to communicate with a Pokemon that is far more powerful and mysterious than his usual team.
One common theme is Ash forming a special bond with a Legendary Pokemon. Maybe he helps the Legendary in a time of need and they become friends. For example, he could save a Mewtwo from some evil organization and then they team up.
He can become more confident in his abilities. Since Legendary Pokemon are so powerful, if Ash can form a bond with one and work together successfully, it boosts his self - assurance. In these fanfictions, he might start to believe more in his own intuition and skills as a trainer. For instance, if he manages to communicate with and help a Legendary like Celebi, he'll see himself as someone capable of handling extraordinary situations.