The main character could be a dark wizard who has harnessed the power of lightning bolts for evil purposes. This would create an interesting dynamic as the other characters in the fanfiction, whether they are students at Hogwarts or members of the Order of the Phoenix, would have to figure out how to stop this dark wizard's reign of terror that is based on his lightning - like powers.
There could be a group of characters. It might include some well - known Harry Potter characters like Hermione and Ron, but with a new twist. For example, they could be mentoring a new generation of wizards, and one of those new wizards has a special ability that is symbolized by the lightning bolt. So they all get involved in a story centered around this new ability.
One possible plot idea could be a character suddenly developing a new magical power similar to the speed and unpredictability of a lightning bolt. For example, a young wizard who has always been mediocre in magic suddenly discovers they can move at lightning - fast speeds during duels, turning the tables on their opponents.
It's hard to say for sure without reading it, but it's likely that Harry Potter himself would be one of the main characters, as it's in the title. Hermione and Ron could also be involved since they are Harry's closest friends in the original series.
Obviously, Harry Potter would be one of the main characters. He would be the one most likely to interact with the concept of the 'Lord of Lightning'.
Obviously, the Lightning Lord is a main character. There could also be the classic Harry Potter characters like Dumbledore who might play a role in the story. They could be either guiding the Lightning Lord or trying to figure out their intentions.
Dumbledore can also be a main character in such fanfictions. He might have known more about the Lightning Bolt scar than he let on in the original series. Fanfiction could explore his past interactions with Harry's parents regarding the scar and how he was secretly guiding Harry towards unlocking the full potential of the Lightning Bolt.
The main character is obviously the Lightning Dragon Slayer. But there could also be appearances from well - known Harry Potter characters like Harry, Hermione, and Ron. They might interact with the slayer in various ways, either as allies or with some initial suspicion.
Since it's a fanfic, it could still have Harry Potter as one of the main characters. Hermione and Ron might also be there. But it could also introduce new characters that are related to the lightning and darkness elements, like a wizard who has special powers related to lightning and an antagonist who embodies the darkness.
Well, the main character is Harry Potter. In these fanfictions, he is often given the title 'Lightning Lord' which implies that he has some sort of special connection or power related to lightning. This new aspect of his character then drives the plot in different and often exciting directions compared to the original Harry Potter series.
Another possibility is a dark wizard who has been secretly studying the power of the God of Lightning for years. This wizard wants the power all for himself and sees Harry as an obstacle. He could be a former Death Eater who has broken away from Voldemort's group to pursue this power on his own. He would use his knowledge of dark magic and his own minions to try and take the power from Harry.
I don't really know who Kateyko is in this fanfiction without reading it. She could be an original character created by the fanfiction writer.