If Harry killed Voldemort with a gun in fanfiction, it would be a huge shock. First, it would mean that all the complex magic they'd been using was perhaps not as necessary. It could also lead to a big divide in the wizarding world. Some might think it was a cheap way to end Voldemort, while others might see it as a sign that they need to be more adaptable.
Well, it would change the whole wizarding world's concept of combat. Guns are a Muggle weapon, so it would show that Muggle technology could be a real threat to wizards. Maybe it would make the wizarding community more open to learning about Muggle ways.
In this fanfiction scenario where Harry kills Voldemort with a gun, it would completely rewrite the power dynamics. Magic has always been the dominant force in the Harry Potter universe. But with a gun, a Muggle weapon, being the tool of Voldemort's demise, it would make wizards question their own superiority. Wizards might start to fear Muggles more, or they could try to incorporate Muggle technology into their own defenses. It could also change how Harry is perceived. Instead of being a great wizard, he might be seen as someone who took an easy, non - magical way out. But on the other hand, it could also show his resourcefulness in using whatever means necessary to defeat evil.
It's possible that there's a hidden stash of Muggle items in Hogwarts, and Harry stumbles upon it. He discovers the gun there, realizes it could be a powerful weapon against Voldemort, and decides to use it.
Well, it completely changes the nature of the magic - based world. Usually, the battle between Harry and Voldemort is about magic spells and wizardry. With a gun, it brings in a Muggle weapon, which might make the wizarding world seem less special. It could also change the way other characters view Harry. Some might see him as a radical for using such an un - wizard - like method.
He could have been influenced by the Muggle world. Having grown up with Muggles, he might have seen the power of guns and thought it could be a more straightforward solution compared to complex magic spells. Also, he might have wanted to prove that Muggle technology could be just as effective in the wizarding world's battles.
One possible plot could be that Harry has a magical pet, perhaps a phoenix or a very intelligent owl. This pet discovers a hidden weakness of Voldemort. Harry, with the help of his pet's discovery, manages to defeat Voldemort in a final showdown. For example, the pet might find a magical artifact that can nullify Voldemort's dark magic, and Harry uses it to his advantage.
Some might be shocked. Hermione, for example, would probably be very concerned about the use of a Muggle weapon in the wizarding world and its implications. She might worry about how it could change the balance between the Muggle and wizarding communities.
One possible plot twist could be that while captured, Harry discovers a hidden power within himself. Maybe it's a new type of magic that he unlocks due to the extreme situation. This power allows him to not only break free from his captors but also gives him an edge over Voldemort. Another aspect could be that the capture was part of a plan all along, by Dumbledore or some other wise wizard, to deceive Voldemort and get Harry in a position where he can deliver the final blow.
The wizarding community would be shocked. Guns are not part of their world, and for Harry to use one to kill Voldemort would be unthinkable for many. There would be outrage from some traditional wizards who believe in magic as the only proper way to fight.
Maybe Harry uses some powerful and unexpected spells. For example, he could combine the Patronus Charm with a blasting spell. The Patronus might distract Voldemort while the blasting spell hits him hard.
After Harry kills Voldemort in the graveyard in the fanfiction, the magical balance might shift. With Voldemort gone, some of the dark magic that was prevalent might start to fade away. The Hogwarts School of Witchcraft and Wizardry could see a new golden age. New spells and magical theories might be explored as the fear of Voldemort no longer holds back the wizarding scholars. Harry himself might start to travel around the world to spread the news of Voldemort's defeat and also to learn more about different types of magic. His friends would also have new opportunities, like Hermione might be able to further her studies without the constant threat of Voldemort and Ron could finally relax and enjoy a more peaceful life at the Burrow.
In fanfiction, a female Voldemort could bring in new sub - plots. For example, she could be related to some of the other female characters in ways that the male Voldemort couldn't be. This could create new storylines about family secrets or female - centric magic. Her presence could also inspire other female characters to either oppose her more vehemently or be drawn to her power, changing the overall power dynamics in the wizarding world.