A third common theme is identity. Danny is a half - ghost, which already gives him an identity crisis of sorts. When he enters the world of the Justice League, he has to re - evaluate his identity even more. Is he a hero like them? Is he something else? Fanfictions often play with this idea, showing Danny's journey of self - discovery while also interacting with the well - established identities of the Justice League members. Some stories might also have the Justice League members question their own identities in the face of Danny's unique situation.
One common theme is the clash of two different worlds. Danny comes from a world where ghosts are a big part of his life, and the Justice League is from a more traditional superhero world. So there's often a theme of how they deal with each other's differences.
I think it could be Superman. Superman is all about truth and justice and he would likely see the good in Danny. Also, they both have super strength in a way. Danny has his ghostly strength and Superman has his Kryptonian strength. They could bond over protecting the innocent.
One common theme is the idea of an outsider fitting in. Danny is a ghostly hero in his own world, and when he meets the Young Justice team, he has to find his place among them. Another theme is power combination. Writers often explore how Danny's unique ghost powers can combine with the abilities of the Young Justice members.
I'm not entirely sure as I haven't read this specific fanfiction. It could be about a disrupted or alternative version of a story where Danny Phantom interacts with the Justice League in some unexpected or 'broken' way.
Danny could use his ghostly powers to disrupt the technology that some Justice League members rely on. For example, he could mess with Cyborg's systems. His ability to overshadow people might also be a key factor, allowing him to control some of the less - powerful members.
Another storyline might involve Danny being wrongly accused by the Justice League of a crime he didn't commit. As he tries to prove his innocence, he uncovers a deeper conspiracy that threatens both the human world and the Ghost Zone. He has to use his wits and powers to clear his name and save the day.
In this fanfiction, perhaps Danny Phantom discovers a plot against the Justice League early on. He then uses his invisibility and intangibility to gather information. His ability to fly and super strength (in his ghost form) would be crucial in battles against the villains targeting the League. For example, if the villains had some sort of kryptonite - like weapon against Superman, Danny could use his powers to either disable the weapon or protect Superman until they find a way to neutralize it.
One possible plot could be that Danny Phantom is facing a threat in his own dimension that is beyond his control. He decides to call the Justice League for help. Maybe he first has to figure out a way to contact them across dimensions. Once he does, the Justice League initially doubts his claims but as they start to investigate, they realize the severity of the situation and they all work together to fight the new and strange enemies from Danny's world.
In such a crossover, Danny could team up with Superman. Danny's ghost powers would be really interesting combined with Superman's super strength. Maybe they'd fight a common enemy that has powers related to both the supernatural and advanced technology.
Well, he could bring his unique ghost powers to the team. His intangibility and invisibility would be great for stealth missions. And his ghost ray could be a powerful offensive weapon. Maybe he'd also have some funny interactions with the more serious Justice League members like Batman.
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.