One type of story could be about Merlin using his magic to save the Avengers from a magical threat they can't handle on their own.
A great story could be about a time - traveling adventure. Merlin somehow gets transported to the Avengers' time and vice versa. The Avengers are taken aback by Merlin's archaic ways and magic, while Merlin is amazed by the advanced technology. They must work together to get back to their respective times. Along the way, they learn from each other's strengths and weaknesses. Merlin could use his magic to fix some of the technological glitches they encounter during their time - traveling journey, and the Avengers could use their combat skills to protect Merlin from the dangers of the modern world.
There could be a story where Merlin has to adjust to the modern world of the Avengers while also teaching them about the power of magic. The Avengers might be skeptical at first, but as they see Merlin's abilities in action, they start to respect and rely on him more. It could involve Merlin showing them how to use magic in combination with their existing powers to defeat a common enemy.
One idea could be that Merlin uses his magic to help the Avengers in a battle against a powerful magical enemy. Maybe he disguises himself as a normal human at first and then reveals his true powers when the situation is dire.
One popular trope is the 'fish - out - of - water' story. Merlin, coming from a medieval world, is suddenly in the modern world of the Avengers. It's funny to see his reactions to things like technology. Another is the 'power - sharing' trope. Merlin's magic and the Avengers' powers combine in unique ways to defeat enemies.
One great 'Merlin Crossover with Avengers' fanfiction is 'When Merlin Meets the Avengers'. It has an interesting plot where Merlin's magic gets him noticed by SHIELD. Another good one is 'Merlin in the Marvel Universe'. It shows how Merlin's wisdom and magic skills can be used to solve some of the Avengers' toughest problems.
Another idea is that a villain creates a rift between the two universes. The Avengers and Merlin have to team up to close this rift. During their journey, they exchange skills and knowledge. Black Widow could teach Merlin some combat skills, while Merlin could show the Avengers how to use magic in a more strategic way. This way, they not only close the rift but also become stronger as a combined force.
The Avengers would also have to adjust to the social and cultural norms of Camelot. They can't just barge in and start making demands. Merlin would have to act as a mediator between the two groups. He would explain to the people of Camelot that the Avengers are there to help, and at the same time, he would make sure the Avengers understand the importance of respecting Camelot's traditions. This interaction would create a lot of interesting storylines and character development opportunities.
Merlin could bring his magic to the Avengers. His knowledge of ancient spells and potions might help in battles against powerful foes. For example, he could use magic to disarm enemies or create protective shields.
A sense of adventure would be in Merlin's story. He has been on many quests and journeys. He might talk about traveling to far - off lands in search of a solution to a problem in Camelot. He could describe the different landscapes he saw, from snow - covered mountains to vast deserts. And of course, there would be elements of good versus evil, as Merlin constantly battles against the forces of darkness to protect the light in Camelot.
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.
In Merlin fanfiction, Merlin might tell a story about his magic origins. Maybe he shares how he discovered his powers as a young boy in Ealdor. He could talk about the first time he made something extraordinary happen, like making a flower bloom in the dead of winter. This story would not only be about his powers but also about the fear and wonder he felt at that moment.
In a Merlin - joins - the - Avengers fanfiction, there could be some really interesting scenarios. Merlin's magic could add a whole new dimension to the Avengers' battles. He could use his magic to heal the Avengers quickly or create illusions to deceive their enemies. Maybe he'd have some clashes with Tony Stark at first because of their different approaches to problem - solving, but eventually they'd learn to work together.