In some fanfictions, there could be a plot where the dark magic in the Harry Potter universe intersects with the Addams family's natural inclination towards the macabre. Maybe a dark wizard tries to use the Addams family's home as a base for some evil plan. But the Addams family, with their own brand of strength and eccentricity, turn the tables on the wizard. This could lead to an alliance between the Addams family and the Hogwarts faculty to fight off the common threat.
A possible crossover in fanfiction could involve Wednesday Addams becoming an apprentice of Batman. She has her own sense of justice and a no - nonsense attitude. Batman could train her in his ways, but she would also bring her own Addams Family charm to the Batcave. She might decorate it in a more gothic and spooky way, and her dark humor could lighten up the often - brooding atmosphere in Batman's world. This could lead to some really fun and unique adventures as they fight crime together in Gotham.
A possible crossover could be in the area of magic. The Addams family might have their own brand of 'weird' magic that clashes or combines with the magic in Harry Potter. For instance, Pugsley Addams could create some really odd potions using ingredients from both the Addams' world and Hogwarts' supply.
One interesting crossover could be Stewie from Family Guy getting his hands on a Harry Potter wand and causing chaos at Hogwarts. He might use his advanced intellect to try and outwit the wizards and witches there.
One idea could be that the Addams family visits Hogwarts. Wednesday could be intrigued by the Dark Arts classes and start causing some spooky chaos among the students. She might even try to out - do Draco Malfoy in being menacing.
A great plot could be a duel between Harry and Wednesday. Harry uses his wizarding spells while Wednesday uses her unique skills of dealing with the spooky and unexpected. It would be a battle of two very different kinds of power. Another plot could be a quest where they both search for a lost magical artifact that has the power to bring out the darkest secrets of both their worlds. They have to overcome many obstacles together, like strange creatures and dark magic spells.
It would be really interesting. Harry would grow up in a very different atmosphere. Instead of the strict but loving environment at the Dursleys, he'd be in the spooky and unique Addams family setting. He might learn some very unusual magic from them, and his personality could be a blend of the Addams' eccentricity and his own Gryffindor courage.
Well, the Addams Family might be intrigued by Harry's magic wand. Morticia could compare it to one of Gomez's strange collectibles. Wednesday might see Harry as an interesting new addition to her rather dark world view. And the Dursleys? They would be terrified if the Addams Family ever showed up to check on Harry. It could be a really wild and wacky crossover with lots of unexpected interactions between the two very different fictional universes.
One interesting crossover could be the Quirk vs Magic aspect. In many bnha harry potter fanfictions, characters from BNHA like Deku might visit Hogwarts and try to understand magic while the Hogwarts students are fascinated by his Quirk. It makes for a great exploration of two very different power systems.
One interesting crossover could be the use of magic systems. In some fanfictions, the characters might combine spells from Harry Potter with the dragon - related magic in Eragon. For example, a wizard from Harry Potter might learn to communicate with dragons like the characters in Eragon.
One interesting crossover could be Ben using his alien forms to help the students at Hogwarts during a dark wizard attack. For example, his Heatblast form could be useful against ice spells. Another could be Harry Potter using magic to enhance Ben's Omnitrix. Maybe a spell that makes it transform faster or unlock new alien forms.