Well, first, the world - building would be crucial. The two universes have very different rules. In the Percy Jackson world, there are gods and monsters from Greek mythology. SHIELD, on the other hand, is all about modern - day espionage and advanced technology. A good way to make it work would be to have a sort of 'portal' or 'rift' that connects the two worlds. Maybe some ancient artifact that SHIELD discovers opens up this rift. Percy could be drawn into the SHIELD world through this, or vice versa. Agents of SHIELD could be sent to investigate the strange happenings in Percy's world.
The plot could revolve around a common threat. For example, a powerful ancient being that was sealed away long ago is now being awakened. This being has the potential to destroy both the world of Greek mythology and the modern world that SHIELD protects. Percy and the SHIELD agents would have to put aside their differences and work together. They would combine their unique skills. Percy's powers over water and his combat skills as a demigod, along with the agents' technological know - how, weaponry, and strategic planning to defeat this threat.
Yes, there could be. Writers often like to cross over different fictional universes. In such a fanfiction, Percy Jackson's demigod skills would be interesting to incorporate into the world of Shield agents. Maybe his water - controlling abilities could be used in some sort of covert operation, like creating distractions or even rescuing agents in a flooded area.
One idea could be that Percy Jackson is discovered by SHIELD. Maybe they initially mistake him for a mutant or some new kind of enhanced being. They try to study him, but Percy is having none of it. He uses his powers to escape their facility and then has to outwit SHIELD agents while also dealing with some mythological threat that has emerged in the modern world. This could lead to some interesting interactions as Percy tries to keep his identity as a demigod a secret from SHIELD.
A fanfiction like this would be really exciting. Percy, as a Shield agent, would be constantly balancing his demigod life and his new role. He might have to keep his identity as a demigod a secret from most of the Shield agents. His powers would give Shield an edge in battles, but also attract unwanted attention from enemies who might want to study or use his powers for their own evil purposes. The story could also involve him making new friends and enemies within the Shield organization, and there could be a lot of internal politics and power struggles that Percy has to navigate through while still being true to himself.
Their worlds could collide when a mythological creature shows up in a Shield - protected area. This would force Shield agents to deal with something beyond their normal scope, and Percy would be called in to handle it because of his knowledge of the mythological world.
At first, it might be a relationship of mutual suspicion. The Agents of Shield are used to dealing with threats within a certain framework, and Percy with his magic powers and connection to the Greek gods would be something completely new. But as they face common enemies, like a powerful demigod - turned - villain or a group trying to use Greek magic for evil, they would start to trust each other more.
In a crossover fanfiction, the settings could merge. For example, Camp Half - Blood could be visited by Naruto. The demigods would be intrigued by his chakra abilities, which are so different from their own powers based on the Greek gods. Naruto could teach them some of his ninja skills in return for learning about their combat techniques. And perhaps the Juubi's presence could disrupt the natural balance of the Percy Jackson world, leading to new and unexpected adventures for both Naruto and the demigods.
Percy's powers would definitely change the team dynamics. His water - based powers could provide a new element of defense and offense. For example, he could create water barriers to protect the team or use water jets to attack enemies. This would make the team more versatile in combat situations.
A crossover could work by having a common enemy. Let's say there is an entity that wants to take over both universes. Naruto and Agent Venom would meet while investigating this threat. They would find that their powers complement each other. Naruto's ability to create multiple clones could be used as a distraction while Agent Venom sneaks up on the enemy. Agent Venom's resistance to physical damage could also protect Naruto in dangerous situations. Their relationship could start off rocky due to differences in their personalities and fighting styles, but they would gradually learn to work together as they face greater challenges.
Well, in a Percy Jackson and X - Men fanfic, it could start with a portal opening between the two universes. Percy and his friends might accidentally stumble through it and find themselves in the X - Men's world. They would be confused by the advanced technology and the different types of powers the mutants have. The X - Men would be equally intrigued by the demigods. There could be a conflict at first, as both groups are used to being in charge of their own situations. But then they realize they can learn from each other. For instance, Logan could teach Percy some combat skills that are different from what he's learned in Camp Half - Blood, and Percy could show Logan how to use water in a more magical way.
His power over water could be used for stealth operations. For example, he could create a mist to hide agents or himself. Also, for defense, he could raise a water wall around SHIELD facilities.