Well, in fanfiction, the idea of Issei using Dragon Slayer magic can open up a whole new world of possibilities. It could make him even more powerful in battles against various foes. Maybe it gives him an edge in fighting dragons or other powerful magical creatures that he might encounter in the 'High School DxD' universe.
If Issei uses Dragon Slayer magic in fanfiction, it could potentially have an impact on the power balance in the story's world. Maybe it tips the scales in favor of his team or faction. This could lead to new alliances being formed or old ones being broken as other characters react to this new power dynamic. Also, the source of this magic could be a key plot point. Was it a gift? Or did he obtain it through some sort of dangerous quest?
Well, there are some out there. The idea of Naruto using dragon slayer magic is really cool. In these fanfictions, Naruto could potentially gain new powers and face different kinds of challenges. For example, he might use the dragon slayer magic to fight stronger enemies that his normal ninja skills couldn't handle. It's a great concept that allows for a lot of creativity in the fanfiction world.
There's a fanfiction where Issei is a dragon slayer and he teams up with some unexpected characters from the Highschool DxD universe. The story is called 'Issei's Dragon Slaying Adventure'. It delves into his relationships with other characters in a new light as he takes on this new role. He has to face not only the usual enemies but also some who are after his newfound powers.
In fanfiction, dragon slayer magic might be outlawed to create more interesting plot twists. For example, it could make the protagonist's journey more difficult as they have to find alternative ways to deal with threats. It also adds a sense of danger and mystery. If everyone could use dragon slayer magic freely, the story might become too predictable.
The popularity of Highschool DxD Issei Dragon Slayer fanfiction often lies in the power - up aspect. Fans love to see Issei gain new and exciting abilities like dragon slaying powers. It makes him seem more heroic and gives him an edge in the battles within the story.
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.
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.
He'd be extremely powerful. Naruto already has a lot of chakra and strong ninja skills. Adding dragon slayer magic would give him new ways to attack and defend. For instance, he could use fire dragon slayer magic to enhance his fire - based jutsus.