In certain fanfiction scenarios, it could be through some kind of ancient training method that was long forgotten. Naruto stumbles upon an old scroll or meets an old hermit who reveals to him the secrets of controlling all elements. So, his discovery is more of a guided, knowledge - based awakening rather than a spontaneous one.
In many fanfictions, Naruto might discover his element - bending ability through a dangerous encounter. For example, he could be in a fight against a powerful enemy where his normal jutsu are ineffective. This desperate situation forces him to tap into some latent power within himself, and he unknowingly starts to bend the elements. It could also be due to some kind of ancient prophecy or training from a hermit - like figure that reveals his hidden potential.
One challenge could be the sheer amount of chakra it requires. Controlling all elements might demand a vast amount of chakra, and Naruto may find himself quickly drained in battles. For example, if he tries to use all elements simultaneously, he could run out of chakra and be left vulnerable.
Well, it could make some characters more in awe of him. For example, his friends like Sakura and Shikamaru might see him in a new light. They could rely on him more during difficult situations. And his enemies would probably be more fearful. They might change their strategies when facing him, knowing he has such a powerful ability.
Maybe it could be through some sort of magical jutsu. Naruto is known for his unique ninjutsu skills in his own universe. He might have developed a new jutsu that allows him to connect with and control the Hulk's mind. For example, it could be a jutsu that detects and manipulates gamma radiation, which is what created the Hulk. Or perhaps he found a way to use his chakra in a new way to interface with the Hulk's rage - powered form.
Well, in some fanfictions, Naruto might gain the ability to control nature through intense training with a hermit or some ancient spirit. For example, he could be led to a hidden grove where the essence of nature is concentrated, and by communing with it over time, he gradually unlocks the power to control nature.
Another possibility is that Naruto acquires the ability to control the weather from a powerful artifact. He might stumble upon an ancient relic during one of his adventures. This artifact has the power to control the weather, and once Naruto touches it or figures out how to use it, he gains this extraordinary ability. It could be that the artifact was created by a long - forgotten civilization that had mastered the art of weather manipulation.
In some fanfictions, it could be due to a new jutsu he discovers. Maybe during a secret training session in an ancient scroll, he finds a forbidden technique that allows him to control people.
It might strengthen his relationship with Sasuke. For example, Naruto could use his time - control to understand Sasuke's pain better. He could go back to the time when Sasuke's clan was massacred and truly feel what Sasuke went through, which would make Sasuke more likely to open up to him and trust him more.
Well, perhaps he first notices it during a really intense storm at Hogwarts. Maybe he's out in the courtyard and suddenly the wind starts to change direction as he gets a strange feeling inside. It could be that he was in a Quidditch match and the clouds above started to move in an odd way when he was concentrating hard on winning.
In some versions of the fanfiction, it could be due to his unique heritage. Since Harry has a complex family background in the wizarding world, there might be some long - forgotten blood magic in his lineage that surfaces unexpectedly. One day, during a duel where he gets a minor cut and his own blood is exposed, he notices that he can somehow manipulate the flow of blood, and that's how he discovers this ability.