The story might start with Danny being in a difficult situation in his own world. Wonder Woman, seeing his potential and the good in him, decides to adopt him. She could take him to Themyscira, her homeland. There, Danny would be exposed to a whole new culture and way of life. He might learn about their values, like truth and justice in a different context. And his powers could be enhanced or modified in some way by the magic and advanced knowledge on the island.
In this fanfiction, Danny's relationship with Wonder Woman would be central. He would look up to her as a mother figure. Wonder Woman, on the other hand, would see Danny as a project, someone she can mold into a great hero. Danny's ghost powers could come in handy when they face threats together. For example, he could phase through objects to gather intelligence or use his ecto - blasts in combat. And as Danny grows under Wonder Woman's care, he could also influence her views on the world, especially when it comes to dealing with the more otherworldly threats that his knowledge of the ghost zone could provide.
Well, one possible plot could be that Danny Phantom is facing a powerful ghost that is beyond his normal capabilities to defeat. Wonder Woman, with her super strength, combat skills, and magic lasso, comes to his aid. She could use her lasso to restrain the ghost while Danny figures out a way to send it back to the Ghost Zone. They might also learn from each other. Danny could show Wonder Woman how to phase through objects in the human world in a different way than she does in her own realm, and Wonder Woman could teach Danny some hand - to - hand combat techniques that he lacks.
Living with Wonder Woman could expose Danny to different sources of power. Themyscira might have some sort of energy or magic that could interact with his ghostly powers. This could lead to the development of new powers or a different form of his existing powers. For example, he could gain the ability to fly faster or have a more stealthy form of phasing that is not only useful for going through physical objects but also for sneaking around undetected in a more magical or energy - based sense. His powers would no longer be just about being a half - ghost, but a combination of his ghostly nature and the new elements he's exposed to through Wonder Woman and her world.
One interesting crossover could be Danny using his ghost powers to assist Wonder Woman in a battle against a supernatural threat that her usual powers alone can't handle. For example, if there's a ghostly villain that can phase through her lasso and physical attacks, Danny's ability to turn intangible and fight other ghosts would come in handy.
If Danny Phantom is adopted by Flash in fanfiction, it could completely change Danny's life. He would be exposed to a whole new set of allies and enemies. For example, he might have to face off against Flash's villains, like Reverse - Flash. At the same time, he could also form new friendships with Flash's friends, like Iris. Danny's powers, which are more supernatural in nature, could be a source of fascination and also a bit of confusion for the Flash and his team. And Danny would have to adapt to living in a world where speed is the most prominent power, which is very different from his own world where his ghost powers set him apart.
Danny Phantom can go intangible and invisible, which would be really useful for sneaking up on enemies. Wonder Woman has her super strength and speed. So, Danny could use his invisibility to get close to an enemy unnoticed, and then Wonder Woman could quickly rush in with her super strength to take the enemy down. For example, if they were facing a group of powerful demons, Danny could scout ahead invisibly and then signal Wonder Woman to attack.
In this fanfiction, it could be that Danny Phantom meets a Danny Phantom from a parallel fan - made story. At first, they don't trust each other. But as they learn more about each other's worlds, they realize that there are some common elements that are being threatened. It could be that a powerful ghost is trying to rewrite all the fanfic universes related to Danny Phantom. So, they must combine their strengths and knowledge to stop this from happening.
In a 'Harry Potter adopted by Wonder Woman' fanfiction, it could be that the magical world and Wonder Woman's world are somehow connected. Harry is in danger in the wizarding world, and Wonder Woman steps in to protect him. She adopts him, and as he grows, he uses his knowledge of magic to help Wonder Woman in her battles. For example, he could use spells to enhance her weapons or create magical barriers during combat.
In a few fanfictions, Danny's ghostly enemies, such as Vlad Plasmius, might be paired in an adversarial way with Wonder Woman. This creates a conflict where Wonder Woman has to use her skills and powers to combat a foe that has different and unusual abilities compared to her usual adversaries.
In the fanfiction scenario, if Danny Phantom were adopted by Batman, it would be a really interesting mix of two different fictional universes. Danny, with his unique ghostly abilities like intangibility and flight, would bring a new dimension to Batman's crime - fighting in Gotham. Batman, on the other hand, could offer Danny a more stable family environment and a sense of discipline. Danny could also learn a great deal about strategy and stealth from Batman, which would be useful in his battles against ghosts. And perhaps together, they could face threats that neither could handle alone, like some sort of supernatural - crime hybrid villains.
One storyline could be Danny Phantom using his powers to protect Catwoman from a new and powerful enemy in Gotham. Another could be him trying to fit into Catwoman's world while still holding on to his own identity. There could also be a storyline where he discovers a connection between the ghost world and some of Gotham's mysteries.