The theme of betrayal is often seen. Maybe Merlin is wrongly accused of betraying Arthur due to his use of dark magic for a good cause. Or Arthur might be seen as betraying his own ideals under the influence of some dark power. It adds a lot of drama and tension to the fanfiction. Also, the exploration of a post - apocalyptic Camelot where Arthur and Merlin have to fight against dark forces to rebuild their world is a cool theme. It gives a whole new dimension to their characters and relationship.
Power corrupts is a theme that can be explored. Arthur could gain too much power, perhaps through dark means, and it starts to change him. Merlin then has to decide whether to support his friend or oppose him for the greater good. This theme can lead to some really intense and thought - provoking storylines in Merlin Dark Arthur fanfiction.
Well, a lot of merlin x arthur fanfiction focuses on the power dynamic between them. Since Arthur is a king and Merlin his servant, exploring how that changes when their relationship becomes more than just master - servant is a big theme. And of course, there are themes around protecting each other. Merlin always protects Arthur with his magic secretly, and in fanfics, this can be elaborated on more, like in situations where Arthur is aware of Merlin's efforts.
One popular theme is loyalty. Merlin's unwavering loyalty to Arthur is often explored in a more romantic or deeply bonded way in fanfiction. Another theme is the power dynamic between them, like how Merlin's magic can both protect and complicate their relationship. Also, the idea of destiny plays a big role. Since they are so intertwined in the Arthurian legend, fanfiction might explore how their being mates is fated and how they fulfill their destinies together.
One key theme is the struggle between good and evil within Arthur. Since it's a 'dark arthur' concept, his darker nature often battles with his better self, and Merlin is caught in the middle. Another theme is loyalty. Merlin's loyalty to Arthur is tested as Arthur's actions become more unpredictable in these darker interpretations.
Some fanfictions focus on the theme of alternate universes. In these, the Merlin - Arthur kiss can happen in a completely different setting. For instance, they could be in a modern - day world where they meet in a different way than in the original story. Or perhaps they are in a world where magic is accepted openly, and their relationship develops more freely. This allows for creative interpretations of their relationship and the significance of their kiss.
One common theme is loyalty tested. In many Merlin - Arthur hurt fanfictions, situations are created where Arthur's position as king or Merlin's role as his servant put their loyalty to each other on the line. Another theme could be sacrifice. For example, Merlin might have to sacrifice his magic or his safety to protect Arthur, or vice versa. Also, the theme of friendship in the face of danger is prevalent. They might be hurt physically or emotionally due to battles or political intrigue, but their friendship endures.
One popular theme is unrequited love. Arthur might want Merlin but be unable to express it due to his status or other obligations. Another theme could be the discovery of Merlin's magic and how that affects Arthur's feelings towards him.
You could check out 'Shadows of Arthur and Merlin'. In this fanfiction, the author creates a rather gloomy and intense atmosphere. It shows how Merlin tries to deal with a more menacing Arthur, and their interactions are full of tension and unexpected twists. It's really a fascinating read if you like this kind of pairing.
One popular story could be about Arthur and Merlin going on a secret quest that wasn't shown in the original series. It might involve them facing a new, powerful magical creature. Another could be a story where Merlin has to hide his true identity even more carefully from Arthur in a different set of circumstances. There are also fanfictions that explore their relationship in a more modern - day AU (alternate universe) setting.
There could be a fanfiction where Merlin discovers a new magic that he has to keep hidden from Arthur at first. It would add an interesting layer of secrecy and tension to their dynamic. This type of story often delves into Merlin's internal struggle between his loyalty to Arthur and his need to explore his magic freely.
One common theme is friendship. Their relationship is often at the heart of the stories, showing how they support and grow with each other. Another is loyalty. Arthur and Merlin are extremely loyal to each other in the original series, and this is often emphasized in fanfiction.