Perhaps in the fanfiction, a lava dragon slayer is accidentally transported to the Naruto world. The slayer could team up with Naruto and his friends. They would share their knowledge of lava - based attacks and the slayer could learn about chakra. Together, they could go on adventures, facing off against powerful villains. The slayer could use their unique abilities to help in battles, like melting through strong defenses or creating lava - based barriers.
The character's moral compass could also shift. Let's say a Naruto character who becomes a lava dragon slayer starts using their power for revenge at first. But as they face the consequences of their actions and see the harm they cause, they realize the error of their ways. They then start to use their power to protect and uphold justice. This change in their values would be a significant part of their character development, as they go from being self - centered to being more selfless and heroic.
Another fanfiction could involve a situation where Azula is transported to the Naruto universe. She might mistake the lava - based attacks in the Naruto world as some advanced form of firebending. Naruto and his friends would be both curious and cautious about this powerful newcomer with her unique abilities related to fire and Naruto's lava - like jutsu could play a role in their interactions.
In a Naruto - Fairy Tail fanfiction with a Water Dragon Slayer, one idea could be that the slayer is from a hidden village that has some connection to Fairy Tail's world. The slayer's abilities would be quite useful in Naruto's world. They could use their water dragon slaying magic to fight against the Akatsuki, for instance. Their magic could be a great asset in battles, especially in areas where there is a lot of water or moisture. It would be cool to see how the Naruto characters react to this new type of power.
One idea could be a story where a new character with the lava release bloodline enters the Hidden Leaf Village. This character could initially be seen as a threat but later prove to be an ally. They might have unique abilities within the lava release, like creating lava constructs that can be used for both offense and defense.
One idea could be a story where a young ninja discovers they have the Lava Release ability but it's a rare and feared power in their village. They have to struggle to control it while also facing discrimination from other villagers. As they grow, they meet Naruto who helps them see the potential of their power for good.
One idea could be a crossover where Naruto meets a shadow dragon slayer from another dimension. They could team up to fight a common enemy that threatens both their worlds. Maybe a powerful dark wizard who wants to steal Naruto's chakra and the dragon slayer's magic.
One idea could be to have the Dragon Slayers from Fairy Tail cross over into a different magical realm. They could encounter new types of magic and creatures that they have to learn to deal with. For example, a realm where magic is based on music and they have to figure out how to use their dragon slayer magic in that environment.
Maybe the Wood Dragon Slayer has a connection to the Sage of Six Paths. This connection gives them unique abilities that no one else has. They could discover this connection during a dangerous mission in an ancient ruin. And then they have to learn how to control these newfound powers while also dealing with the political unrest in the village that arises from others fearing their new strength.
Well, one idea could be the fusion of Naruto's ninja skills with crystal dragon slaying magic. Maybe Naruto discovers a hidden power within him that allows him to summon crystal dragons and use their powers in battles against powerful foes in the Naruto universe.
One idea could be that Naruto discovers he has the power to slay golden dragons during a mysterious mission in a hidden land. Maybe the dragons are guarding an ancient power that could change the ninja world.