Well, one key element is the mentor. In many of these fanfictions, Kakashi or another experienced ninja acts as the mentor. They guide Naruto through the process of understanding and controlling the lightning - based chakra. Another element is Naruto's motivation. Usually, it's either to become stronger to protect his friends or to prove himself to his village. For example, in some stories, Naruto wants to show that he can be as powerful as the other top - tier ninjas in the village.
The training methods are also important. Some fanfictions have Naruto training in extreme environments, like a thunderstorm - filled valley. This helps him get closer to the nature of lightning and better understand how to manipulate it. Also, the discovery of his own unique way to use the Lightning Jutsu is a common element. Naruto might combine it with his shadow clone jutsu, creating a whole new and powerful technique.
The challenges Naruto faces during the learning process are crucial elements. He may struggle with the instability of lightning chakra at first. This could lead to some dangerous situations where he has to quickly learn how to control it. And in some fanfictions, there are external factors that try to stop him from learning, like enemies who don't want Naruto to become more powerful.
A key element is the motivation. Naruto might be motivated by the need to keep up with his peers, like Sasuke. Another element is the source of learning. It could be an old master, a hidden scroll, or even a self - discovery during battle. For example, in many fanfictions, Naruto stumbles upon a forgotten jutsu scroll in the village library. Also, the challenges he faces while learning are important. Lightning Style is fast and powerful, so Naruto would have to overcome his own chakra control issues and learn to handle the high - energy nature of this style.
He might learn a time - traveling jutsu. This would be really cool as it could allow him to go back and change certain events in the Naruto world, or gain knowledge from the past to use in the present battles.
A common plot element is the struggle with chakra control. Since fire jutsu requires precise chakra manipulation, Naruto often has to work hard on this aspect. For example, in many fanfictions, he might start by accidentally creating small, unruly flames instead of the desired large and controlled ones. Another element is the mentorship. Usually, someone like Kakashi or an older shinobi takes Naruto under their wing to teach him the fire jutsu.
In fanfiction, Naruto learning the Vacuum Jutsu could be really cool. It might give him a new and powerful offensive technique. Maybe he'd learn it from an unexpected source, like an old hermit in a forgotten land. This could potentially change the power dynamics in battles he's in.
He could potentially learn the Flying Thunder God Technique. It's a very powerful jutsu that Minato was famous for. Naruto's already fast with his Sage Mode and Nine - Tails Chakra, and this would make him even more formidable in battle.
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.
He could become even more powerful. The Vacuum Jutsu might allow him to defeat stronger enemies more easily.
In fanfiction, the Lightning Dragon Jutsu can be extremely powerful. It can be depicted as a massive dragon made of pure lightning that can obliterate anything in its path. Another powerful one could be the Lightning God's Wrath, a jutsu that summons a bolt of lightning from the heavens with the power to level mountains.
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.
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.