In this type of fanfic, the Infinity Stones could have a very different effect in the Harry Potter universe. For example, the Time Stone could be used to reverse dark spells or resurrect fallen wizards. However, the Stones' power might also be limited by the magic rules of the wizarding world. The fanfic could delve into how the characters from both universes adapt to the presence of the Stones and how they use or misuse their power.
The Infinity Stones could be linked to the Deathly Hallows. Maybe the Resurrection Stone has a connection to the Soul Stone. They could both have the power over life and death in different ways. And the other Infinity Stones could be related to the Elder Wand's power of domination and the Cloak of Invisibility's power to conceal, but on a much grander scale, if they were to be incorporated into the Harry Potter world.
One possible fanfic could be about a wizard from the Harry Potter world accidentally stumbling into the Marvel universe. The wizard discovers the Infinity Stones and realizes their immense power. He teams up with the Avengers to protect the Stones from a dark wizard who wants to use them to conquer both universes. The story could involve the wizard using his magic in unique ways to help the Avengers in battles and the Avengers teaching the wizard about their world.
One way could be through a powerful dark wizard's experiment. Maybe a wizard, seeking ultimate power, discovers a way to bring the Infinity Stones into the magical world. They could be hidden as powerful magical artifacts, and their powers might be harnessed in a way similar to how wizards use magic. For example, the Time Stone could be used to manipulate time within the wizarding world, perhaps to reverse a tragic event or to gain an advantage in a battle.
Of course. It could be that the Infinity Stones were created by an ancient and extremely powerful wizard in the past of the Potter universe. In a fanfic, Harry could be the one destined to find and master the Stones. He could use the Power Stone to enhance his own magic, the Space Stone to travel instantly to different parts of the wizarding world to fight Death Eaters. The Reality Stone could be used to create illusions so powerful that they can deceive even the most powerful dark wizards. And the Soul Stone could have some connection to the Horcruxes, like a way to destroy them completely.
In the 'Harry Potter has the Infinity Stones' fanfic, the whole wizarding world would be changed. Harry might use the Reality Stone to create illusions that are so real they could deceive even the most powerful wizards. With the Mind Stone, he could perhaps read the minds of his enemies and gain crucial information for his battles against the dark forces. And the Space Stone could help him teleport around the wizarding world, giving him an edge in both escape and surprise attacks.
The Infinity Stones in the Harry Potter world could change the nature of magic. The Reality Stone could make illusions so real that they become tangible. Wizards might mistake it for a new form of advanced transfiguration. The Soul Stone could have a connection to the wizard's soul, perhaps allowing a wizard to transfer their soul into another object or person, which would be a very dark and dangerous power in the hands of the wrong wizard. There would be so many possibilities for interesting storylines.
Harry could use the Mind Stone to read the thoughts of his enemies, like Voldemort. This would give him an edge in the fight against the Dark Lord. Hermione might use the Time Stone to gain more time to study and find solutions to difficult problems, like how to defeat a powerful dark magic spell.
Hermione Granger would also be a likely candidate. Her thirst for knowledge and her extensive research in the library might lead her to discover ancient texts about the Infinity Stones. Then she would go on a mission to find them, using her intelligence and magical skills to track them down.
In a fanfic, the Infinity Stones could be the key to unifying the two universes. For example, the Soul Stone could have a connection to the souls of wizards in the Harry Potter world. A villain from the Marvel universe could try to use the Stones to gain control over the magic in the Harry Potter world. The Avengers and the main characters from Harry Potter would then have to work together. They would combine their skills, with the Avengers' combat abilities and the wizards' magic, to stop the villain from achieving his evil plan. The fanfic could explore how the different powers and cultures of the two universes interact and co - exist during this adventure.