He would become extremely powerful. Thor's hammer gives the wielder the power of Thor, which includes super strength, the ability to control lightning, and flight. Harry could use these powers to fight against Voldemort in a whole new way. He could zap the Death Eaters with lightning bolts and smash through their defenses with the hammer's strength.
If Harry Potter wielded Thor's hammer, it would be a cultural shock in both the wizarding world and the world of Thor. In the wizarding world, they have magic wands and spells, and suddenly Harry has this foreign object with god - like powers. In the world of Thor, an ordinary - looking wizard from another realm is able to lift Mjolnir. This could lead to new alliances being formed, or in the case of the bad guys, new threats emerging as they see Harry as a new and dangerous opponent.
Well, if Harry Potter were to pick up Thor's hammer in fanfiction, he might find himself suddenly connected to the power of Thor. It could be that his magic somehow complements the magic or power within the hammer. He could use it to fight against the dark forces in his own world or be drawn into adventures in the realm of Thor. It would be a really cool crossover concept, and it might also cause a stir among the wizards in the Harry Potter world who would be both amazed and perhaps a bit envious.
Well, in fanfiction, if Harry picks up Thor's hammer, he might gain the powers associated with it. He could suddenly have enhanced strength, the ability to control lightning to some extent, and be deemed worthy in the eyes of the Asgardian magic that governs the hammer. It would be a really cool twist as Harry comes from a world of magic already, and this would be like adding another layer of powerful magic to his repertoire.
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.
Well, if Naruto got Thor's hammer in fanfiction, it would be a really interesting crossover. Naruto is known for his strong will and determination, which are important qualities to be worthy of the hammer. He might use the hammer to protect the ninja world from greater threats that his normal jutsu couldn't handle. For example, if there was a super - powerful enemy that was immune to ninjutsu, the hammer's magic could be the solution.
If Percy moves Thor's hammer in fanfiction, it might be due to some sort of magical or divine interference. For example, perhaps there is a cross - over of magic from Percy's realm that temporarily allows him to be worthy. Or it could be that the hammer itself has a different set of rules in the fanfiction world. This event could lead to Percy being hunted by Asgardians who think he has stolen the power of the hammer, or it could start a quest where Percy has to figure out why he can move it and what it means for his future.
In the fanfiction, if Naruto picks up Thor's hammer, he might gain some new powers related to Thor. Maybe he could control lightning like Thor does. Since Naruto is already powerful in his own right, this could make him nearly unstoppable. He could use the power of the hammer in his battles against powerful foes in the Naruto universe.
In fanfiction, if a human picks up Thor's hammer, it often gives them extraordinary powers. They might gain the ability to control lightning like Thor, or have enhanced strength and durability. It could also lead to them being recognized as a worthy hero, and they may be thrust into adventures in the realm of the Asgardians or on Earth, defending it from various threats.
In this fanfic, Naruto might gain new powers or a special status. Since Thor's hammer can only be lifted by those worthy, Naruto lifting it could signify his great character. He could use the power of the hammer in battles against powerful foes in the Naruto universe, like Madara or Kaguya.
Well, it could be really interesting. Maybe in this fanfiction, Peter Parker picks up Thor's hammer during a big battle. This act would not only shock everyone around him but also change the course of the battle. With the hammer, he could fly faster and strike with more force. And it would also likely have an impact on his relationships with other superheroes. They might see him in a whole new light, as someone who is not just a friendly neighborhood Spider - Man but also a worthy wielder of a powerful Asgardian weapon.
Well, Harry Potter would probably become an even more powerful wizard. Thor's combat skills and physical strength could be incorporated into Harry's magical abilities. Maybe he'd be able to cast spells while doing some of Thor's epic leaps and strikes.