The plot would be much more complex. Harry could easily defeat Voldemort with the combined power of the Infinity Stones. So the main conflict of the original story would be resolved very quickly.
If Harry had the Infinity Stones in fanfiction, the plot would change drastically. Instead of relying on his friends and Hogwarts for protection and power, he would have the Stones' abilities. This would likely lead to a more solitary journey as he might think he doesn't need anyone else. Also, new villains might emerge who are after the Stones, creating a whole new set of challenges that are different from the fight against Voldemort.
The plot would be transformed in numerous ways. For one, the political landscape of the wizarding world would be different. With the Infinity Stones, Harry could enforce his own ideas of justice and order. He could use the Power Stone to enhance the defenses of Hogwarts to an unbreakable level. The Time Stone could allow him to explore different timelines and gain knowledge that was previously unavailable. This new knowledge might lead him to make decisions that would change the relationships he has with his friends and mentors. And his relationship with Dumbledore, for example, might become more complex as Harry's power grows. Also, the story would no longer be just about the fight against Voldemort, but about how Harry manages the power of the Infinity Stones and the new threats that come with it.
If Harry Potter had the Infinity Stones in fanfiction, it would completely transform the wizarding world. Magic as we know it would be redefined. Harry could potentially use the Time Stone to go back and prevent Voldemort from ever rising to power in the first place. The Reality Stone could be used to create new magical landscapes or even change the nature of existing spells. With the Power Stone, he might be able to enhance the power of every wizard and witch in the world, making them more capable of defending against dark forces. Overall, it would be a radical shift from the original Harry Potter universe.
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.
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.
If Harry got the Dark Mark in fanfiction, his story would take a dark turn. He'd have to face the prejudice of the wizarding community. His relationships with his friends like Ron and Hermione would be strained. They'd be constantly worried that Harry might be turning evil. And Harry would have to find a way to hide the mark's influence while trying to figure out how to get rid of it. His journey would be filled with more self - doubt and secrecy.
Well, he would probably become extremely powerful. He could use the Time Stone to go back and change certain events in the wizarding world, like preventing some of Voldemort's evil deeds. With the Power Stone, his magical abilities might be amplified to an unimaginable level, allowing him to defeat any dark wizard with ease.
In a fanfiction where Harry Potter has the Infinity Stones, his life would take a completely different turn. First of all, the Space Stone would enable him to teleport anywhere in the wizarding world or even beyond. This would make it impossible for his enemies to catch him. The Soul Stone, on the other hand, might have some deep connection with the wizard's soul. Maybe it could help him understand the true nature of magic and his own destiny better. He could use all these stones' powers in combination to bring about a new era of peace and magic in the wizarding world, but he would also have to face the great temptation and potential corruption that comes with such immense power.
It would change drastically. He'd be much more powerful than before. He could easily end the war against Voldemort.
The plot could change drastically. Harry might become more paranoid about the unknown threats in his world. He could start seeing potential Lovecraftian - like entities in the Forbidden Forest or in the shadows of Hogwarts. This new - found fear could make him more hesitant in his adventures and less likely to jump into dangerous situations without more information.
The plot would change in many ways. Harry being bitten by a vampire means he'd have different needs and abilities. His magical training at Hogwarts might be put on hold as he tries to understand and control his vampiric instincts. He could form alliances with unexpected characters, perhaps other vampires who oppose the dark wizards. His journey would become more about self - discovery and finding a balance between his wizard and vampire sides. The existing conflicts in the story, like the war against Voldemort, would be intertwined with his new situation. For example, Voldemort might try to use Harry's new nature against him, or Harry could use his vampire powers to gain an advantage in the fight.
Izuku's story would be completely transformed. With the Infinity Gauntlet, he could potentially end all crime in an instant with the snap of his fingers. However, this new power would also isolate him. His friends might not understand the burden he now carries. He would have to constantly be on guard against those who would try to steal the gauntlet from him. And his self - discovery journey would take a different turn as he has to come to terms with being one of the most powerful beings in his world.