One possible plot could be that the Death Eaters in the Harry Potter world form an alliance with some super - villains from the Justice League universe. Harry and his friends then team up with the Justice League heroes to fight this combined evil. For example, Superman could use his super strength to take on the giants in the wizarding world while Hermione helps Batman with her vast knowledge to figure out the villains' plans.
In a 'Harry Potter Harem Justice League Fanfiction', it could start with Harry being transported to the Justice League's universe. He discovers that his magic is a unique power there. The harem might form as the female members of the League, like Hawkgirl and Black Canary, are intrigued by this new 'wizard' in their midst. Meanwhile, they all figure out that an old enemy of the League has teamed up with Death Eaters from Harry's world. So, they train Harry in their ways and he teaches them some magic, all while dealing with the budding relationships.
One idea could be that the Justice League somehow ends up in the wizarding world. Maybe a magical portal opens during a battle in their universe and sucks them into Hogwarts. Superman's powers could be affected by the magic there, and Batman would be intrigued by the complex magic system and start studying it. Harry Potter and his friends could team up with the Justice League to fight a new dark force that threatens both the magical and non - magical worlds.
It could imply a very creative and off - the - wall crossover. Maybe someone is imagining the characters from 'Harry Potter' in situations or with abilities similar to those in the 'Death Justice League'. It might also suggest a new take on the 'Harry Potter' story where elements of the 'Death Justice League' are incorporated in a fan - created narrative.
One idea could be that Voldemort discovers a way to enter the DC universe and teams up with some of the Justice League's villains like Lex Luthor. The Hogwarts students and the remaining members of the Justice League have to join forces to stop them. The wizards can use their magic while the superheroes use their powers.
Well, it could be about Hollow Ichigo being transported to the DC universe and getting involved with the Justice League. Maybe he starts off as a threat they have to deal with, but then they realize he's more complex and might end up working together against a greater evil.
Well, it could be about Tala and The Flash teaming up against a common enemy in the Justice League universe. Maybe they discover a new threat that requires both of their unique abilities to combat.
A possible plot could be that a villain from an unknown dimension is using the power of a lemon - like object to create chaos in both the Justice League's universe and the Harry Potter world. The Justice League and the main characters from Harry Potter have to team up to stop this villain. During their journey, they find that the lemon has some unique properties that bind them together in a way that creates a harem - like situation. For example, it could be that the lemon gives off a scent that makes characters more attracted to each other, leading to unexpected romances between characters from different universes.
One idea could be that Harry Potter is magically transported to the DC Universe and is mistaken for a meta - human. The Justice League initially views him with suspicion but then realizes his unique magical abilities could be an asset in fighting a new, magic - based threat.
It could be a wild and exciting story. Maybe the wizards from Harry Potter team up with the super - heroes of the Justice League. The immortals in the story could be Dumbledore or Voldemort from Harry Potter world, and they bring their magic to the Justice League's fight against evil. It would be a clash of different powers and cultures.
The plot might involve the Justice League finding a way to incorporate magic into their understanding of the world because of Harry. For example, the Flash could be curious about how Harry can apparate and might try to find a scientific explanation for it. Aquaman could teach Harry about different forms of communication, as he has his own unique way of communicating underwater. As Harry grows, he might use the Justice League's resources to fight against the Death Eaters. He could bring some of the League's technology into the wizarding world, which would change the dynamics of the fight against Voldemort.