Well, there are elements of historical truth in the Arthur and Merlin real story. Archaeological evidence suggests there was a period of conflict and leadership in Britain that could be related to Arthur. Merlin, on the other hand, was likely a composite of different wise men or druids in Celtic culture. But the magical aspects are clearly fictional additions that have made the story so enchanting over the centuries.
One main event is Arthur pulling the sword from the stone, which symbolized his rightful claim to the throne. Merlin was often involved in guiding Arthur, like when he arranged for Arthur to be raised in secrecy. Another event was the formation of the Knights of the Round Table under Arthur's leadership, with Merlin's influence in choosing some of the knights perhaps.
The banter between Merlin and Arthur in fanfiction is really interesting. It can range from light - hearted jabs at each other's habits. Merlin might poke fun at Arthur's love for jousting and how he always gets a bit too competitive. Arthur could retort by mentioning Merlin's clumsy attempts at serving him. Their banter also reflects the underlying respect they have for each other despite their different social standings. It's like a friendly sparring that keeps their relationship dynamic.
In the story, Merlin was a powerful wizard who played a crucial role in Arthur's life. He guided Arthur from his early days, often using his magical powers to protect him and ensure he could fulfill his destiny as king. For example, he arranged for Arthur to pull the sword from the stone, which was a key moment in Arthur becoming king. Merlin also provided wisdom and counsel to Arthur throughout his reign, helping him make important decisions.
Merlin would likely be seen as a bit of an enigma at Hogwarts. His magic is different from the norm, so he might be a bit of an outsider at first. But his kind heart and loyalty would soon win over his classmates. Arthur would be the brave and headstrong character, perhaps a bit like a Gryffindor version of his usual self. He'd be eager to learn about combat magic and would probably be a natural leader in group projects or Quidditch teams.
During the time of Merlin's captivity, they could have long conversations that they never had before. Arthur might open up about his insecurities regarding magic and his kingdom, and Merlin could share his true feelings about serving Arthur. This would strengthen their bond in a new and unexpected way.
It could start with a slow realization of their feelings. Maybe they were friends for a long time and then suddenly, one day, they look at each other in a new light. After getting married, they become more protective of each other. Arthur might become more open to Merlin's magic, and Merlin would be more involved in Arthur's political decisions.
The 'Redemption' trope is also seen in some fanfictions. Maybe Arthur has made some mistakes in the past, and Merlin helps him to redeem himself. Or vice versa. It's a way to explore the characters' growth and development. And then there's the 'Battle Against Evil' trope where they fight side by side against dark forces, which really showcases their bond and loyalty.
I really like 'The Sword in the Stone' as a fanfiction - like take on Merlin and Arthur. It shows Merlin as this wise and mysterious figure guiding Arthur on his journey to become king. There are also some great interactions between the two characters that show the deep bond they share. You can find it in many libraries or online bookstores.