It could also be a young ninja from a small, unknown village. This character discovers their godly lightning affinity by accident and then sets out on a journey to become a great ninja. Along the way, they meet various characters from the Naruto universe and learn from them, all while trying to understand and develop their special power.
One interesting concept could be unique jutsu based on the godly lightning affinity. For example, the protagonist might develop a lightning jutsu that can not only attack but also has the power to heal allies by using the pure energy of the lightning in a different way. Another concept could be the origin of this godly affinity. It might be related to an ancient clan or a powerful deity in the Naruto universe.
The plot could involve Naruto being the only one with this godly fire affinity. He might be hunted by those who fear his power or want to use it for their own gain. This could set him on a journey to find out more about the origin of this power and how to control it fully.
It might be an existing character from the Naruto series who has a new encounter that leads them to focus on the black lightning. For instance, Sasuke could stumble upon a hidden scroll about the black lightning and decide to master it to become even more powerful.
A fanfic with Naruto having a godly fire affinity might explore different aspects of his character development. For example, he may struggle with controlling this powerful ability at first. This could lead to some internal conflict within him as he tries not to let the power overtake him. Also, the fanfic could introduce new villains who are specifically attracted to his newfound power, creating more intense storylines.
One possible jutsu could be the Lightning Dragon. He could summon a huge dragon made of lightning that could attack his enemies. Another could be the Lightning Clone Jutsu, where his clones are made of lightning and can deliver electric shocks upon contact. He might also develop a Lightning Dome jutsu, creating a dome of lightning around him for protection.
Maybe it's Naruto himself with an additional power - up. Imagine Naruto gaining the godlike lightning ability on top of his existing powers. He would be even more formidable and could use the lightning in combination with his shadow clones and Rasengan techniques. This would change the dynamics of his battles and relationships with other characters like Sasuke, who also has powerful lightning - based attacks.
One common theme is the struggle to control the lightning affinity. Since lightning is a powerful and somewhat wild element, characters often have to learn to tame it. Another theme is the discovery of new lightning - based jutsu. Writers like to explore how characters can innovate with their lightning chakra. And there's also the theme of rivalry, especially against those with other elemental affinities.
Sasuke would also make a great main character. Given his affinity for lightning - based jutsus, he could be drawn to the Lightning God Slayer powers. He might see it as a way to become even more powerful and seek revenge on his enemies. His journey to master these powers could be filled with self - discovery and moral dilemmas.
It could be a rogue ninja who has also mastered lightning - based jutsu. This antagonist might be jealous of Naruto's growing power and fame, and wants to prove that his lightning skills are superior. So, he constantly challenges Naruto in battles where lightning jutsu are the main form of combat.
He could create a Lightning Clone Jutsu. These clones would be made of lightning chakra and could move at extremely high speeds. They could also deliver electric shocks when they touch an enemy.