Who could be Harry Potter's mentor in the 'Harry Potter builds a lightsaber' fanfiction?

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.

Perhaps Hagrid could be his mentor. Hagrid has a lot of knowledge about magical creatures and their parts, which could be useful for Harry in his blacksmithing. He could show Harry how to use things like dragon scales or unicorn hairs in his creations.

Dumbledore could be his mentor. He has vast knowledge and experience, and he would likely see the potential in Harry being an Animagus. He could guide Harry through the difficult process of learning to control his transformation and use his Animagus form for good.

It could be Hagrid. He has a lot of knowledge about different magical creatures and skills. He might introduce Harry to marksmanship as a way to protect himself better in the wild. Hagrid could show Harry how to make his own arrows and teach him the basics of aiming and shooting.

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.

Ron could also be a great ally. His loyalty and courage would be important. He might be in charge of security, using his skills in wizard chess to plan out defensive strategies. And of course, the Weasley family in general could offer a lot of support, with their various skills and connections in the wizarding world.

Well, Hermione is an obvious choice as she's not only smart but also very loyal to Harry. Ginny would be there for sure, given her love for Harry. Then there could be some less - known characters like Astoria Greengrass. She might be drawn to Harry's charisma. And don't forget about Nymphadora Tonks. Although she's older, in a fanfiction world, she could develop an unexpected attraction to Harry because of his brave and selfless nature.

Hermione could be a main character. She would use her intelligence and vast knowledge of magic to help Harry plan and build the city. Her skills in research and spell - casting would be invaluable.

Maybe there's a powerful and corrupt wizard in the Ministry of Magic who doesn't want Harry to have an independent means of travel like the yacht. This wizard could send his minions to disrupt Harry's work, or even create false laws that would make building the yacht illegal in the wizarding world.

The Death Eaters could be the antagonists. Even though Voldemort is gone, some of his followers might not want Harry to succeed in building a starship as they fear it could bring more power to Harry and his friends, and they still hold grudges against him.