Well, perhaps in this fanfiction, there's a special connection between Peter and the magic of the hammer. Maybe he has some latent power that he doesn't even know about, and when he comes in contact with the hammer, this power activates and allows him to lift it. It could also be that the writer of the fanfiction has created a new set of rules specific to their story, where Peter's unique set of skills or character traits make him able to lift the hammer.
In this fanfiction, it could be due to a combination of factors. Peter's strong sense of responsibility towards protecting others might be a key. He has always been about using his powers for good. Additionally, his experiences might have shaped him into a person worthy of lifting Thor's hammer. He may have faced great challenges and made sacrifices that the magic of the hammer recognizes. And the fanfiction author might also be playing with the idea of expanding the concept of 'worthiness' to include Peter's brand of heroism, which is more street - level and relatable compared to Thor's more god - like heroism.
In some fanfictions, it could be because Peter has a pure heart. Just like in the MCU, only those worthy can lift Mjolnir. Peter might have proven his selflessness and heroism in a particular situation, which made him worthy enough to lift Thor's hammer.
He might gain new powers or abilities. Since the hammer is a powerful magical weapon, lifting it could unlock some latent potential within Peter. Maybe he can now control lightning like Thor, or he has enhanced strength and durability.
Fanfiction often takes creative liberties. It could be that there is a cross - over event that changes the nature of Thor's hammer's worthiness test. Maybe a powerful magical entity in the Harry Potter universe meddles with the hammer's magic. Harry Potter has shown great moral fiber throughout his adventures. His ability to love deeply, his sense of justice, and his unwavering determination against evil could be seen as the 'worthiness' factor by the hammer's magic, allowing him to lift it.
In some comic storylines, Thanos is able to lift Thor's hammer through extraordinary cosmic powers or specific plot devices.
In the comics, characters like Captain America and Beta Ray Bill have been able to lift Thor's hammer.
Vision cannot lift Thor's hammer in the comics. The hammer's magic is very selective, and Vision doesn't possess the qualities necessary to overcome its enchantment and lift it.
Yes, Captain America has lifted Thor's hammer in the comics on certain occasions.
Yes, in some comic storylines, Captain Marvel has been shown to be worthy and lift Thor's hammer.
In the comics, Vision was not shown to lift Thor's hammer. The ability to lift the hammer is usually reserved for characters with specific qualities and story arcs that didn't apply to Vision.
Well, in fanfiction, the rules can be bent. Maybe it's because Hermione has a purity of heart and strong will, similar to what's required to lift Mjolnir in the original Thor lore. Fanfic writers often play with the concepts of different universes colliding, so her magic and intelligence could combine in a way that gives her the 'worthiness' to lift the hammer.
Yes, in some comic storylines, Captain America has been able to lift Thor's hammer.