In a fanfiction about Naruto's Lightning Release, there could be a story where a young girl discovers she has latent Lightning Release abilities. She trains hard under Kakashi to master it. Along the way, she befriends other ninjas and together they form a team. Their adventures involve using Lightning Release to solve mysteries and defeat enemies. For example, they might use Lightning Release to track down a missing-nin who has a special ability to hide from normal detection methods.
In some fanfictions, it could be an enemy-turned - ally. This character, who originally fought against Naruto, realizes his strength and potential and decides to teach him black lightning as a way to make amends or to join forces with him for a greater cause.
One implication is that his speed will increase tremendously. Lightning is known for its quickness, so Naruto would be able to move at lightning - fast speeds, making it difficult for his enemies to track or counter him. This would give him an edge in battles, especially against opponents who rely on slow - moving attacks or are not as agile.
Well, in many fanfictions, Naruto might learn black lightning through intense training. Maybe he gets some special guidance from a powerful shinobi who has mastered it, like Kakashi or some other unknown but strong character. He could also discover some ancient scrolls that contain the secrets of black lightning.
Another way could be as a result of a special encounter. Maybe he discovers a hidden scroll or a mysterious artifact that imparts the power of lightning control to him. This discovery could be accidental, like when he's exploring an ancient ruin or during a battle when he stumbles upon something unexpected.
It could be about a whole new adventure in the Naruto universe. Maybe it focuses on the unique aspects of the Land of Claws and the Land of Fangs. It might involve new characters native to those lands, or perhaps some sort of conflict that Naruto and his friends have to face there.
He could develop a 'Lightning Clone Jutsu'. Instead of regular clones, these would be made of lightning. They could move at high speeds and deliver electric shocks on contact. Another jutsu could be 'Lightning Shield', where he surrounds himself with a layer of lightning for both offense and defense.
In fanfictions, Naruto might master the Lightning Blade through intense training. He could start with basic chakra control exercises, focusing on the element of lightning. Maybe he has a special mentor in the fanfic who guides him in molding his chakra in the precise way required for the Lightning Blade.
One great 'Naruto Lightning Fanfiction' is 'Lightning's Edge'. It focuses on a character who can control lightning in unique ways. The story is filled with intense battles and the exploration of new jutsu related to lightning. Another one is 'Thunder in the Shadows', which delves into the backstory of a lightning - using ninja and how they came to master such powerful techniques. There are also many on fanfiction.net that you can explore by simply searching for 'Naruto Lightning Fanfiction' and sorting by popularity or reviews.
One idea could be a fanfic where a young ninja discovers a unique way to combine lightning jutsu with other elements like water, creating a new and powerful technique. This could lead to him being sought after by different clans for his knowledge.