In a 'Harry Potter meets Superman' fanfiction, there could be a situation where the two face a common enemy. For example, an evil wizard who has somehow acquired kryptonite and is using it to control Superman. Harry, with his knowledge of magic, could find a way to break the control. On the other hand, Superman could use his super speed to help Harry in a Quidditch match, maybe by chasing the Golden Snitch at lightning speed.
One possibility in this fanfiction is that Superman is transported to the wizarding world. He would be amazed by the Hogwarts castle and all the magic around. Harry could introduce him to his friends and they could all learn from Superman's sense of justice. Meanwhile, Superman could help protect Hogwarts from dark forces, using his heat vision and super - hearing to detect threats long before they arrive. The combination of magic and superpowers would create a really interesting and unique story.
Well, perhaps Harry could use his magic to help Superman understand some of the more mysterious aspects of the wizarding world, like thestrals or time - turners. And Superman could show Harry how to use his super strength in a more strategic way, like when fighting Voldemort's Death Eaters.
In a spiderman meets superman fanfiction, they might start as rivals. Maybe they misunderstand each other's intentions at first. For example, Superman could misinterpret Spider - Man's web - slinging in the city as some sort of unregulated vigilante behavior. But then, they would realize they have a common goal, like saving the world from a powerful villain. They could combine their powers, Superman's super strength and flight with Spider - Man's agility and web - shooting, to defeat the bad guy in an epic battle.
In this fanfiction, Goku and Superman might have an epic battle at first. They could test each other's strength and speed. Maybe Goku would start with his Super Saiyan form and Superman would counter with his heat vision and super strength.
In a 'superboy meets superman fanfiction', there could be an epic battle at first as they test each other's powers. Maybe Superboy is initially a bit rebellious and wants to prove himself against Superman. Then they could end up teaming up to fight a common enemy like Lex Luthor or some other powerful villain from the Superman universe.
In such a fanfiction, perhaps Harry Potter could use magic to communicate with the aliens. For example, he might use a spell to translate their strange languages.
Well, it could be that the Queen, being a symbol of order in the Muggle world, has to deal with the sudden appearance of Harry Potter and the chaos that magic can bring. Maybe she initially mistakes his magic for some sort of advanced technology and there are a series of misunderstandings that lead to an interesting adventure. Harry could introduce her to the concept of Hogwarts and she might be fascinated by the idea of a school for magic.
Well, one possibility is that the magic from the Harry Potter world and the chakra-based abilities in Naruto could combine in interesting ways. For example, a wizard might learn to use chakra to enhance their magic spells, or a ninja could use a magic spell to give them an edge in combat. Another idea could be that the characters from both universes team up to fight a common enemy. Maybe Harry Potter and Naruto could join forces to defeat a powerful dark wizard or a rogue ninja.
Well, it could be that God appears to Harry in a moment of great despair. He might show Harry the true nature of life and death in the wizarding world. Harry could learn about the deeper meaning behind the magic he wields and how it is all part of a greater plan designed by God. God could also guide Harry on how to use his powers more morally and justly, not just for the sake of defeating the Dark Lord but also for the betterment of the entire wizarding community.
Well, perhaps Harry Potter could use his magic against Shendu's dark powers. For example, he might try to counter Shendu's spells with his own powerful incantations like Expelliarmus. It would be an epic battle of magic from two different fictional universes.
One possibility is that Medusa is somehow brought into the Hogwarts grounds. This would cause chaos among the students and teachers. Harry, being the hero he is, would step up. He might research ancient spells and potions to deal with Medusa. He could also enlist the help of his friends like Hermione, who would dig into the library to find any information about Medusa in the wizarding world's history, and Ron, who would be there for moral support and also to help in any practical ways they could come up with.
One possibility is that Harry would learn the real motives behind some of the actions of the Hogwarts teachers. Maybe Dumbledore had some other reasons for keeping certain secrets from him all along. It could also be that the truth about the relationship between different magical creatures and wizards is revealed, like why some were always seen as more dangerous than they really were.