Well, first of all, Percy's power over water is a very raw and instinctual thing at the start. But if Nick Fury were to raise him, he would be taught discipline in using those powers. Fury would make Percy practice controlling the smallest amounts of water, like droplets, with extreme precision. This could lead to Percy being able to create complex water - based structures for various purposes. His ability to heal in water could also be explored further. Maybe Fury would find a way to use this for the benefit of injured agents. And Percy's connection to Poseidon could be used in a more strategic way, like predicting natural disasters that could be threats and using that information to SHIELD's advantage.
His water - controlling powers could be developed for more tactical uses. Instead of just using it in battles against monsters, he could learn to use it for stealth operations, like creating a mist screen to hide movements. Nick Fury might also encourage him to explore other aspects of his powers, like how he can communicate with sea creatures. This could lead to Percy using them as informants or even as allies in missions.
Percy's powers would likely be harnessed in a more scientific way. Fury would probably try to find a way to measure and control the extent of Percy's abilities. He might introduce Percy to some high - tech gadgets that could enhance his powers. For instance, a device that could amplify the range of his water - sensing ability. Also, Percy's physical strength, which is enhanced by his demigod status, could be further trained to be more combat - efficient under Fury's guidance.
Percy would probably be a bit wary at first. He's used to the demigod world and Fury's whole S.H.I.E.L.D. thing would seem really different. But Fury would be all business. He'd likely be sizing Percy up, trying to figure out how to best use his powers.
Percy's demigod powers would likely adapt to his assassin lifestyle. He could use his ability to breathe underwater to access hidden underwater lairs or escape pursuers. His strength, which is already enhanced as a demigod, could be further refined to be more precise for things like silent kills. He might also develop new powers related to the assassin's skills, like being able to move faster in the shadows, which could be a combination of his natural speed and some sort of new power influenced by his assassin upbringing.
Percy's powers might also interact with other superheroes' powers in unexpected ways. For instance, if he were to team up with Iron Man, his water powers could be used to cool down Iron Man's overheating suit in a critical moment. And when combined with Thor's lightning, his water could conduct electricity and create a more powerful attack against enemies.
Well, Percy might become a super-agent in training. Nick Fury could teach him all kinds of combat skills and strategies. Percy's demigod powers would add an interesting twist to the world of SHIELD. Maybe he'd use his water - controlling abilities to create new forms of defense or offense for SHIELD. He could also introduce the world of Greek gods to the agents of SHIELD, which would be quite a shock for them.
His powers might become more refined. For instance, his control over water could be enhanced in terms of precision. Instead of just creating large waves, he could manipulate water at a microscopic level, like using it to disarm an enemy by getting into the mechanisms of their weapons. Athena's training could also give him the ability to combine his water powers with strategic thinking. So he could use water to create diversions or traps in a more intelligent way.
His powers might develop in a more self - taught way. Without the guidance of Camp Half - Blood, he'd have to figure out his water - based powers on his own. Maybe he discovers he can control water from puddles in the street to defend himself from attackers.
Percy and Nick Fury would likely have a very interesting dynamic. Percy is used to a more straightforward world of good vs. evil in terms of the demigod battles. Fury, on the other hand, is all about the political and strategic side of things. Percy might be a bit impulsive at times, which could annoy Fury, but Fury would also recognize Percy's power. Percy would probably be in awe of Fury's knowledge and resources at first.
His water - related powers could become more refined. Shiva has a connection to water in some Hindu myths, like his role in the Ganges river story. So, Percy might be able to control water in more complex ways, such as creating intricate water sculptures that can also be used as weapons. His ability to manipulate water temperature could also improve, allowing him to freeze water instantly or make it boil on a large scale.
His chakra control might improve in a different way. Sesshomaru's precise and refined combat style could force Naruto to have better control over his chakra. For example, he might learn to use his chakra more sparingly like Sesshomaru uses his demonic energy.
A fanfic could revolve around Percy and Nick Fury teaming up to stop a powerful and ancient creature that has been awakened. Percy has the knowledge of the mythological world and his powers, while Fury has access to all the high - tech resources of S.H.I.E.L.D. Together, they form an unlikely duo that has to learn to trust each other in order to succeed.