Another theme could be the search for identity. Mewtwo has always questioned its existence as a created being. Lugia, on the other hand, may be dealing with how it fits into a changing Pokemon world. In the fanfic, their interactions could be a way for them to explore and better understand their own identities, and in the process, help each other find their true selves.
A possible theme could be friendship. Despite their differences, Mewtwo and Lugia could form an unlikely friendship. Mewtwo is a man - made Pokemon with a complex past, while Lugia is a more natural, mythical guardian. Their friendship could show that even very different beings can come together for a common good.
In this fanfic, perhaps there is a prophecy that only Mewtwo and Lugia together can fulfill. The prophecy might be related to saving the Pokemon world from a great disaster, like an approaching asteroid or a dark force that is spreading across the land and sea. They start as strangers, but as they begin to understand the prophecy and their roles in it, they form a deep bond. Mewtwo uses its intelligence and combat skills, and Lugia uses its natural strength and connection to the elements to face the impending doom.
The theme of discovery is also present. Mewtwo is discovering a whole new world in Naruto, with new rules, new people, and new powers. And at the same time, the Naruto characters are discovering this strange and powerful being from another world. It's about exploring the unknown on both sides.
One possible plotline is a redemption story for Mewtwo. He starts off as a bit of an outcast or a threat, but through his interactions with Mew, he begins to see the value in life and friendship. Another could be a search for power. They both realize they can gain more strength by working together and embark on a journey to unlock hidden powers within themselves.
One common theme is power. Both Mewtwo and Mew are extremely powerful Pokemon, so fanfics often explore how they use or misuse their powers. Another theme is identity. Mewtwo, being a created Pokemon, has an identity crisis which Mew can sometimes help with. Also, friendship or a deeper bond is a theme. They might start as strangers or even enemies but gradually form a connection.
One common theme is empowerment. A female Lugia is often shown as a powerful and independent figure. Another theme could be friendship, like her forming bonds with other Pokemon or trainers.
Common themes in Pokemon Mewtwo fanfics include the search for purpose. Mewtwo, being a powerful and intelligent being, often wonders what its place in the world is. Friendship is another theme, though it might be a bit rarer as Mewtwo is usually depicted as a solitary creature. However, some fanfics explore how Mewtwo might form deep bonds with other Pokemon or even humans. And of course, the theme of self - discovery. Mewtwo has to figure out its own nature, its strengths, and its weaknesses through various adventures in these fanfics.
A 'pokemon mewtwo and missingno fanfic' could potentially tell a story where Mewtwo, the powerful and genetically - engineered Pokemon, crosses paths with Missingno, the infamous glitch Pokemon. It might be a story of how Mewtwo tries to understand or control Missingno, or perhaps they team up against a common enemy. There could be a lot of creative elements in such a fanfic, like new abilities for the Pokemon or a whole new world created just for them.
One possible plotline could be that Ash somehow gets merged with Lugia's power during an unexpected encounter in a mysterious place. Maybe he's trying to protect Lugia from some evil force, and in the process, a magical transformation occurs. This could lead to him having to learn how to control Lugia - like powers, such as flying and using powerful water - based attacks. Another plotline could involve Ash being transformed into a Lugia - like form and having to hide it from his friends at first, fearing their reaction.
One possible theme could be about new life and the responsibilities that come with it. Even though Mewtwo is a powerful Pokémon, dealing with pregnancy might bring out a different, more nurturing side of it.
Mewtwo might initially be hostile towards the Unown. It's a powerful and often solitary Pokemon, and the Unown's strange abilities could be seen as a threat. So it could try to attack or control them.