A cool fanfiction idea could be Danny getting caught up in the power struggles of the Seven Kingdoms. Since he has superhuman abilities, different factions might try to use him for their own gain. For example, Daenerys could see him as a powerful ally against Cersei. Or perhaps the maesters would be interested in studying Danny's unique powers, thinking they could use them to gain an edge in the wars.
One possible crossover could be Danny using his ghost powers in the world of Westeros. Maybe he could use his intangibility to sneak into the Red Keep unnoticed. Another idea is that Danny's enemies from his own world could team up with some of the villains in Game of Thrones, like the White Walkers. This would create a really interesting and dangerous situation where Danny has to use his powers in a completely different and complex world.
In a Danny Phantom and Game of Thrones fanfiction, Danny might end up changing the course of the Game of Thrones story. His ability to fly could give him an advantage in battles. He could also use his ecto - blasts to fight off the undead hordes of the White Walkers. It would be really exciting to see how his presence in Westeros would disrupt the normal politics and warfare of the land.
One interesting Danny Phantom and Marvel crossover in fanfiction could be where Danny's ghost powers interact with the superpowers in the Marvel universe. For example, his intangibility might play an interesting role against characters like Colossus. Maybe he could phase through Colossus' metal form in a fight and surprise him.
One interesting crossover could be Danny using his ghost powers to help the Avengers in a battle against a powerful, otherworldly threat. For example, his intangibility might be useful for sneaking past enemy defenses.
A possible crossover could involve Danny and Wolverine teaming up to face a common enemy that is a threat to both the ghost world and the mutant world. This enemy could be something like a powerful entity that can manipulate time and space. Danny's ability to phase through different dimensions and Wolverine's brute strength and healing factor would be crucial in combating such a foe.
Danny could be a mysterious figure that arrives in Westeros. He might be mistaken for a wizard or a demon at first. His powers would make him a force to be reckoned with. For instance, his invisibility could be used to spy on the different houses. He could then use the information he gathers to either help the good guys or play his own game.
One interesting crossover could be Danny and Kim teaming up to fight a common supernatural enemy. Maybe a villain that has both magical powers and high - tech gadgets at their disposal. Danny's ghost powers would complement Kim's martial arts and gadget skills.
In some fanfictions, Danny might visit the Naruto world and learn about chakra while Naruto could be intrigued by Danny's ghost powers. Danny could use his intangibility to dodge Naruto's attacks and Naruto could show Danny some of his cool jutsu. They could exchange fighting techniques and learn from each other.
One interesting crossover could be the characters from Danny Phantom having to face the challenges in the world of Soul Eater. For example, Danny might have to deal with the madness that lurks in Soul Eater's world while trying to keep his own ghost - fighting abilities in check. Another could be the Death Scythes from Soul Eater being intrigued by Danny's half - ghost form and wanting to study it. Maybe they see his powers as a new type of weapon potential.
In Harry Potter and Danny Phantom fanfiction, a cool crossover idea is the sharing of technology and magic. Danny's parents' inventions could be introduced to the wizarding world, and in return, the wizards could show Danny some ancient magic that could enhance his powers. Also, the characters' personalities would create interesting dynamics. Danny's laid - back nature compared to Harry's more serious and responsible attitude would lead to some humorous and tense situations when they work together.
A good crossover could be where Danny's ghost sense goes off when Jinx uses her magic for the first time near him. He thinks she's some kind of new ghostly threat. But as he approaches her, he realizes she's something different. They start off as enemies but as they learn more about each other's powers and motives, they become allies. For example, they might team up to stop a powerful entity that is trying to use both magic and the power of the ghosts for its own evil purposes.
One interesting crossover could be Danny using his ghost powers to help the Justice League in a fight against a supernatural threat that they can't handle with their usual powers. For example, if there's a villain who can manipulate dark energy in a way that affects the living but not the dead like Danny. Another could be Danny's friends from his world interacting with the sidekicks in the Justice League universe, leading to some comical and heartwarming moments as they compare their different experiences.