A popular one is 'Merlin's Arrival at Hogwarts'. In this fanfic, Merlin is transported to the world of Harry Potter. The author does an excellent job of showing how Merlin's old - fashioned magic clashes and then blends with the more structured magic of Hogwarts. His relationship with Dumbledore is particularly interesting as they both are powerful wizards with different perspectives. This fanfic is full of adventure and mystery, and it keeps you hooked from start to finish.
One great 'Merlin and Harry Potter' crossover fanfic is 'The Merlin Effect in Hogwarts'. It combines the magic systems of both universes really well. The characters from Merlin, like Merlin himself, fit surprisingly well into the Hogwarts setting. They interact with Harry and his friends in interesting ways, for example, Merlin uses his unique magic to solve some of the problems at Hogwarts that the students there are facing. It's a fun read for fans of both series.
There's also 'When Merlin Meets Harry Potter'. This fanfic focuses on how Merlin's knowledge from his own time can be applied in the modern wizarding world of Harry Potter. It has some really cool moments where Merlin teaches the Hogwarts students about ancient magic. The way the story weaves together the two different magical worlds makes it a great crossover. It also has some heartwarming moments as the characters from both universes form new friendships.
One great 'hetalia harry potter crossover fanfic' is 'The Magical Nations at Hogwarts'. It has an interesting plot where the Hetalia characters are magically transported to Hogwarts. They interact with the Harry Potter characters in a really fun way, like Italy being super confused but also excited about all the magic around him.
First, you need to be familiar with both universes. Know the characters, their personalities, and the rules of magic in Merlin and Harry Potter. Then, think of a unique concept for the crossover. For example, a magical accident that transports a character from one world to the other. Next, plan how the characters will interact. Will they be friends? Rivals? And don't forget about the plot. It should be engaging and make use of the combined elements of both worlds. For instance, a mystery that can only be solved by using magic from both Merlin and Harry Potter universes.
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.
One great Harry Potter fanfic is 'The Life and Times' by Jewels5. It delves deep into the Marauders' era, exploring the backstories of James Potter, Sirius Black, Remus Lupin and Peter Pettigrew in a very detailed and engaging way. It gives a lot of insights into the Hogwarts of that time and how the events led to what we know in the original series.
A popular one is 'Animagus Crossroads'. In this fanfiction, the Animagus ability becomes a key factor in a much larger crossover plot. It has a well - written plot where the characters' Animagus forms play crucial roles in their interactions with characters from other fictional worlds. The author does an excellent job of blending the different elements together seamlessly.
A popular one is 'The Crossover Chronicles: Harry's Harem'. In this fanfiction, Harry Potter crosses paths with characters from different series, leading to a harem situation. It's really interesting how the author manages to blend different elements while still keeping the essence of the Harry Potter world. There are a lot of character developments and plot twists that keep you hooked.
I really like 'A Different Path for Merlin and Arthur'. In this fanfic, the events in Camelot take a different turn. Instead of the usual storylines, we see Merlin and Arthur face challenges together in a more collaborative way. Their bond is stronger from the start, and it shows how their partnership could have evolved differently. It has some great character development for both of them.
Dumbledore would be an interesting addition. He has a lot of knowledge and power, and his interaction with Merlin would be fascinating. Ron could also be included for some comic relief and his loyalty would be an asset in any adventure that combines the two universes.
One great 'jade Harry Potter fanfic' is 'Jade's Magical Journey at Hogwarts'. It has an interesting plot where Jade, a new character, befriends Harry and they go on adventures together, exploring parts of Hogwarts that are not well - known in the original books. The author does a great job of integrating Jade into the existing Harry Potter universe without disrupting the overall feel of the story.
One great 'Harry Potter Ravenclaw Fanfic' is 'The Ravenclaw's Heir'. It delves into the life of a new Ravenclaw student who discovers a hidden secret about the house. The story is full of mystery and really captures the essence of Ravenclaw's love for knowledge.