As an immortal, Percy has a lot of time to master his skills. He could have developed new ways to use his powers. Maybe he can now turn water into different shapes like ice spears or steam clouds for offensive and defensive purposes. His immortality also means he can take more risks in battle without fearing death, which could inspire the Avengers to be more daring in their strategies. He could be the wild card that the Avengers need to take on even more powerful threats.
One new ability could be ice - skating at super - speeds. He could glide across water or land, using his ice - skates made of pure ice, and quickly reach his destination or dodge attacks. It would be like a combination of his natural athleticism and his new ice powers.
Percy has his speed and agility. In the fanfiction, he might be able to use his demigod reflexes to dodge all of the Avengers' attacks. He could then quickly move in for a counter - attack. Also, his sword, Riptide, is a powerful weapon. It can cut through almost anything. He could use it to cut through the Avengers' weapons or their defenses if he gets close enough.
Will Solace might bring the ability to sense the emotional state of the Avengers. This could help the team in many ways. For instance, if he senses that Thor is feeling homesick or that Natasha is overly stressed, the team can take steps to address it. His ability to understand emotions on a deeper level could also be useful in negotiations or dealing with civilians during a crisis.
One way could be to have Percy Jackson's powers of being a demigod interact with the superpowers of the Avengers. For example, his ability to control water could be used in a joint mission with Thor's lightning powers. Maybe they are facing a common enemy that can only be defeated by combining their unique skills.
One possible plot could be that the gods in the Percy Jackson universe sense a great threat from another dimension (the Marvel universe). Percy and his friends are sent to team up with the Avengers. Percy's water powers could be useful in fighting villains like Electro. Annabeth's strategic mind would assist in planning battles against foes like Loki. They all have to learn to work together, with Percy and the Avengers initially having some clashes due to their different ways of handling things.
If Percy Jackson were in an Avengers betrayed fanfiction, it might start with a misunderstanding. The Avengers could mistake Percy's actions for something malicious. Percy, being used to being misunderstood in his own world, would initially try to explain. But as the situation escalates, he realizes he has to use his powers not just to defend himself but also to expose the real villains who are manipulating the Avengers against him. This could lead to some really cool fight scenes where Percy's demigod skills are pitted against the high - tech weapons and superpowers of the Avengers.
One possible plot could be that in a world where the gods of Percy Jackson and the Avengers co - exist, Percy is somehow tricked or forced to banish the Avengers. Maybe there's a power struggle among the gods and they see the Avengers as a threat to their power, so they use Percy, who has a strong connection to the divine world, to get rid of them. Percy might be conflicted as he may admire the Avengers' heroism but has to follow the gods' orders.
In an 'Avengers meet Percy Jackson' fanfiction, there could be a lot of interesting character interactions. For example, Tony Stark might be intrigued by Percy's ability to control water and try to figure out a scientific explanation for it. Natasha could see Percy as a young and powerful ally and train him in some hand - to - hand combat techniques from the Avengers' arsenal. And Percy could introduce the Avengers to the world of Greek gods and monsters, which would be a whole new concept for them.
Well, Percy could use his water powers in really cool ways during Avengers' battles. For example, he might create huge tidal waves to stop enemy attacks. And he could teach the Avengers some new combat moves that he learned from Camp Half - Blood. Maybe he'd also introduce them to Greek mythology monsters and how to fight them.
Well, in some fanfiction scenarios, Percy Jackson might betray the Avengers due to a misunderstanding. Maybe he's been misinformed about the Avengers' intentions towards the demigods. For example, if he hears false rumors that the Avengers plan to control the demigods, he could turn against them in a fit of protectiveness for his kind.