A third idea is to have a fanfiction where the Dragon Slayers swap their magic powers for a short time. This would lead to some really interesting character development as they struggle to adapt to new powers. For instance, Gajeel, who is used to Iron Dragon Slayer magic, would have to figure out how to use Natsu's Fire Dragon Slayer magic effectively.
Another plot could revolve around the origin of Dragon Slayer magic. Maybe a long - lost scroll is found that reveals secrets about how the magic was first created and what its true purpose was. This could lead the Dragon Slayers on a quest to find out more about their powers and their connection to the dragons.
Maybe the fanfiction could focus on a dragon slayer who loses their powers but then discovers a new way to regain them. For example, they might have to go on a spiritual journey and face their inner demons. Along the way, they form new bonds with the members of Fairy Tail, which helps them in their quest.
One interesting plot idea could be that the 5th generation dragon slayer has a unique type of dragon magic that is a combination of different elements. For example, they can control both fire and ice dragon slayer magic at the same time, which makes them a target for both good and bad forces in the Fairy Tail world. Another idea is that this dragon slayer has a connection to an ancient dragon prophecy that no one else is aware of. They have to figure out what their role is in this prophecy while also dealing with the normal challenges of being a dragon slayer in Fairy Tail.
One idea could be an OC Dragon Slayer who has the power of a unique dragon, like a crystal dragon. This slayer could use the dragon's power to create crystal-based attacks. Another idea is an OC who was trained by a dragon in a hidden realm and then enters the Fairy Tail world with a different set of values compared to the regular dragon slayers. Maybe they have a more pacifist view at first but gradually learn to fight when necessary.
Well, you could create an OC dragon slayer who was initially from a different dimension. In this dimension, the rules of dragon slayer magic are a bit different. They come to the Fairy Tail world and have to adapt their magic while also facing the challenges there. Maybe they have a special form of dragon slayer roar that can freeze time for a short period, which would be a really cool and unique ability in the context of Fairy Tail battles.
Well, you could write about a new dragon slayer who has an elemental power that no one has seen before, like the power to manipulate light and shadow as a dragon slayer. This character could start as an outcast but then prove their worth in the Fairy Tail guild by using their unique powers to defeat powerful enemies. They could also have a special bond with a mysterious dragon that no one else is aware of.
A great plot idea could be that a powerful dark force is emerging that is draining the energy of all three worlds. The Naruto characters, Fairy Tail wizards, and Dragon Slayers must team up. They start by having a big meeting to share their knowledge and figure out a plan. Along the way, they have to overcome their differences in fighting styles and beliefs.
A common plot in Lightning Dragon Slayer fanfiction is the character facing a powerful enemy with lightning - related powers that are stronger than their own. This forces them to dig deeper and find new ways to use their slayer magic. For example, they might combine their lightning with other elements they've learned over time. Another plot could involve the slayer being transported to a different realm where the laws of magic are different and they have to adapt quickly. And sometimes, fanfictions explore the slayer's past and how they came to be a dragon slayer, like their relationship with their dragon mentor.
One idea could be a slayer from a different dimension coming to the Fairy Tail world. This new slayer could have unique powers that no one in Fairy Tail has seen before, leading to all kinds of adventures and challenges as the guild tries to figure out how to deal with this new arrival.
One interesting plot idea could be that the Dark Dragon Slayer has a hidden past related to Laxus. Maybe they were both part of a secret experiment by a dark guild long ago. As the story unfolds, they discover this connection and have to team up against the remnants of that guild who are now after them. Another idea is that the Dark Dragon Slayer initially starts as an enemy to Laxus but then realizes they have a common enemy in a powerful, evil dragon that threatens the Fairy Tail guild. So they put aside their differences to protect the guild and its members.
One interesting plot idea could be Gray facing a new type of Devil that has powers over ice in a different way than he does. For example, it could freeze emotions rather than just physical objects. Another could be Gray having to team up with an unlikely ally from his past to defeat a powerful Devil Slayer - turned - villain. Maybe a Devil has possessed a member of Fairy Tail and Gray has to find a way to exorcise it without harming his friend.