One great Merlin - Supernatural crossover fanfic is 'The Hunter and the Warlock'. It combines the magic of Merlin's world with the demon - hunting aspect of Supernatural in a really interesting way. The characters from both shows interact in a believable manner, making for an exciting read.
Themes of destiny and free will also play a big part. In both shows, the characters struggle with their fates. In a crossover, they can compare notes on how they've dealt with prophecies and whether they believe they can change their destinies. For instance, Merlin was prophesied to bring about great change, and the Winchesters have often been part of prophecies in their own world.
Teamwork is also a major theme. Since the characters from both universes have different skills and knowledge, they have to learn to work together. In many fanfics, we see Merlin teaching the Winchesters about his kind of magic, and in return, the Winchesters showing Merlin how to deal with the more modern - day and dangerous supernatural entities. This theme of cooperation is what makes the crossovers so interesting.
One idea could be that Aladin's magic lamp somehow gets transported to Merlin's world. Merlin, being curious about this new form of magic, tries to figure out how to use it while also teaching Aladin about the different kinds of magic in his world. Another could be that a common enemy threatens both their worlds, so they have to team up. Aladin uses his street - smart skills and the power of the genie, while Merlin uses his magic knowledge to defeat the foe.
One popular 'Merlin supernatural crossover fanfic' is 'The Winchester's Apprentice'. It combines the magical world of Merlin with the hunting adventures of the Winchesters. The story has an interesting plot where Merlin somehow gets transported to the Supernatural universe and has to team up with Sam and Dean to fight against dark forces that are related to his own magic.
A well - liked Merlin crossover fanfiction is the one where he crosses over with 'Once Upon a Time'. In this story, he would interact with all the fairytale characters from different stories that are brought together in the town of Storybrooke. It's interesting to see how his magic and his character traits blend with the already complex world of 'Once Upon a Time'. Additionally, there are crossovers with other historical - fantasy shows where his knowledge of magic in a different historical context can add a new dimension to the story.
Common themes in 'the librarians merlin crossover fanfiction' include the discovery of new magic. The Librarians are constantly exploring and learning about new forms of magic, and when they meet Merlin, there's a whole new world of magic to discover. Another theme is the adaptation of characters to new situations. For instance, how the Librarians adapt to the more archaic and powerful magic of Merlin's world, and how Merlin might adapt to the modern - day technology and ways of the Librarians. There's also the theme of redemption in some cases, where a character from either universe might be seeking redemption and the crossover provides an opportunity for that journey.
Another theme is the adaptation of characters. For example, how Bella from Twilight might react to Merlin's world and vice versa. They come from very different backgrounds, and exploring their growth and change in a crossover setting is quite popular. It can also involve themes of friendship and cooperation as characters from both universes have to work together in many of these fanfictions.
First, do your research on both Aladin and Merlin's stories, including their characters, settings, and magic systems. Then, find a unique and interesting concept for the crossover, like a magical rift that brings them together. Next, focus on character development. Show how they interact, learn from each other, and grow. For example, Aladin might teach Merlin about the value of freedom, while Merlin could teach Aladin about the responsibilities that come with magic.
Another theme is the cultural exchange. The shinobi culture from Naruto, with its clans and loyalty, and the courtly culture of Camelot from Merlin. Characters from both sides learn about each other's values, which can lead to character growth and interesting storylines.