It could be a dark wizard who wants to control the holy dragon for his own evil purposes. He might see the dragon as a weapon to take over the wizarding world.
Well, a really interesting plot could be that Harry Potter is actually a descendant of an ancient line of Holy Dragon Slayers. He uncovers this secret when he starts having strange dreams about fighting dragons. As he delves deeper into this mystery, he finds out that there is a prophecy that only he can slay a certain holy dragon that is about to awaken and cause chaos in the wizarding world. Along the way, he has to learn new spells and combat techniques specifically designed for dragon slaying. He might also face opposition from some in the wizarding community who think that slaying a holy dragon is a sacrilege.
A really exciting fanfiction idea could be that Harry Potter is secretly trained by a powerful, reclusive wizard in the art of dragon slaying. This training is done in a hidden location, away from the prying eyes of Voldemort and his followers. As he becomes more proficient, he uses his skills not only to protect the wizarding world from dragons but also to fight against the dark forces that threaten it. He could even form a special bond with a dragon that he spares during one of his slaying missions, and this dragon could later become an ally in his fight against evil.
Yes, there are quite a few. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Some might focus on a unique adventure where the Harry Potter characters encounter sky dragons and a slayer. Just search for the relevant tags on these platforms.
The plot could involve Harry discovering a prophecy that links his destiny to slaying a powerful dragon. So, he embarks on a journey to find and defeat it. Along the way, he might have to learn new spells or combat techniques specific to dragon slaying.
A prevalent theme is also friendship. Friends often come together to help the main character in their dragon - slaying quests. For example, Hermione might use her vast knowledge of magic to help Harry find a way to defeat a dragon. And loyalty is also a big part. The characters stay true to their cause of protecting the wizarding world from the dragon threat. In many fanfictions, there's also the theme of self - discovery. As the characters face these extreme challenges, they learn more about themselves and their potential.
It could be the main character, say, Alex. He has been through a lot of training and has a special connection with magic that gives him an edge in dragon slaying.
One possible fanfiction could be about Harry Potter discovering his hidden ability to slay air dragons. Maybe he stumbles upon an ancient spellbook that reveals the secrets of this power. He then has to train in secret to master it, all while dealing with the regular challenges at Hogwarts like exams and rivalries.
The power of nature is often a theme. The ocean, as the dragon's domain, is a powerful force. The fanfictions often explore how Harry and the others deal with the might of the ocean and the dragon within it. There's also the theme of heroism, with Harry taking on the role of the slayer to protect the magical world from the potential threat of the ocean dragon.
Power and magic are often central themes. In these fanfictions, the power to slay sky dragons might require a new form of magic or a deeper understanding of existing magic. There's also the theme of friendship. Characters may rely on their friends to help them in their dragon - slaying endeavors, just like in the original Harry Potter series. And sometimes, there's a theme of redemption, perhaps for a character who was once on the wrong side but now helps in the fight against the sky dragons.