The plot could start with Harry finding an ancient Jedi artifact during one of his adventures. This leads him to become curious about lightsabers. He then uses his magic knowledge to try and replicate it. Along the way, he might face opposition from some in the wizarding world who think it's too dangerous or against wizarding traditions. But Harry, being the hero he is, persists. Eventually, he creates a lightsaber and uses it to defeat a new, powerful dark wizard who has emerged, using both his wizarding skills and his new lightsaber skills.
In this fanfiction's plot, Harry Potter could be in a situation where he loses his wand. Desperate for a way to defend himself, he remembers reading about lightsabers in a rare magical book. He decides to try and create one. He spends days in the Room of Requirement, gathering materials and using magic in ways he never has before. Once he creates the lightsaber, he has to master it quickly. His first test could be against a group of rogue wizards who are causing chaos in Hogwarts. As he uses the lightsaber, he discovers new powers within himself, and the fanfiction could follow his journey of becoming a new kind of hero, one who combines the powers of the wizarding world and the Jedi.
Well, in this fanfiction, Harry would probably use his magic to create a unique lightsaber. Maybe he'd combine his wand's magic with the technology of the lightsaber. For example, the blade could be made of enchanted light that can cut through dark magic as well as physical objects. He could use it against Voldemort's Death Eaters in a whole new kind of battle, with the swishing sounds of the lightsaber adding a new level of excitement to the wizarding duels.
Well, perhaps Harry discovers an ancient magic that allows him to wield a lightsaber. He could use it to fight Voldemort in a more unique way, combining the magic of the wizarding world with the power of the lightsaber. Maybe he has to go on a quest to learn how to master it fully.
Well, perhaps Harry Potter discovers some ancient magic that allows him to combine the wizarding world's technology with that of the Star Wars universe. He might use his knowledge of spells to power the lightsaber in a unique way, like using the Lumos spell to create the blade instead of the traditional kyber crystal. He could then face off against Voldemort with this new weapon, creating a whole new dynamic in their battles.
Well, in theory, it could. Fanfics often like to blend different fictional universes. However, in the official Harry Potter lore, there are no lightsabers. But in a fanfic, an author could come up with some creative magic or a cross - universe event that brings lightsabers into the wizarding world. Maybe a powerful wizard discovers a way to create a weapon similar to a lightsaber using magic and some rare materials.
In a fanfiction where Harry Potter creates a virus, perhaps it's a virus that affects magic itself. The virus could spread through spells and start to corrupt the very essence of magic. Harry, realizing the severity, might then have to team up with his old friends like Hermione and Ron. They would search for ancient magic or rare potions to counteract the virus before it destroys the entire magical ecosystem.
One possible plot could be that Harry, after defeating Voldemort, decides to create a kingdom where magic and non - magic folk can live together in harmony. He uses his knowledge of magic and the respect he has gained to build a new society with its own set of laws and governance that are fair to all. For example, he could create schools that teach both magic and Muggle subjects to promote understanding between the two worlds.
In a 'Harry Potter creates a shelter' fanfiction, perhaps Harry uses his magic to create a shelter in the Forbidden Forest. He might use spells like Protego Totalum to make it safe from dark creatures. It could be a place where he hides his friends during a dangerous time at Hogwarts, like when Voldemort's forces are on the prowl.
There probably is. Fanfiction writers love to blend different fictional universes. In this case, a 'Harry Potter has a lightsaber' fanfic could involve a lot of creative ideas. For example, the lightsaber could be a magical artifact in the Harry Potter world that has been lost for centuries and Harry stumbles upon it. Or it could be a gift from a mysterious figure from another dimension. The possibilities for the story are really endless.
One possibility is that Harry Potter, using his knowledge of magic and experiences, decides to create a school for mutants. He could use spells to protect the school from the outside world and those who might fear the mutants. He might also teach the mutants how to control their powers, just as he learned to control his magic at Hogwarts.
Well, perhaps Harry Potter, using his magic, accidentally creates the world of Remnant from RWBY. He might then have to deal with the new and strange creatures and powers there, while also trying to find a way to get back to his own world.