I'm not sure if there are extremely popular ones specifically with that exact concept. Fanfiction is a vast world and while there might be some that incorporate this idea, it may not be mainstream. However, it could be a hidden gem in the fanfiction community that only a few dedicated readers have discovered.
There could be some fanfictions out there with 'Harry Potter uses Kusanagi', but it's hard to say if they're popular. The popularity of a fanfiction depends on many factors such as the writing style, how well the concept is executed, and the promotion within the fanfiction community. It might be a niche concept that only appeals to a small group of readers who are interested in both Harry Potter and Japanese mythology.
The idea of 'Harry Potter uses Kusanagi' in fanfiction is likely a product of the writer's imagination to break the boundaries of the original Harry Potter world. Kusanagi has its own set of legends and properties. By having Harry use it, the fanfiction author might be trying to show how Harry can adapt to and utilize something completely foreign. It could lead to all sorts of interesting scenarios, like battles against new enemies or the exploration of uncharted magical territories.
One interesting 'Harry Potter Kusanagi' fanfiction could be one where Kusanagi, with her unique skills, teams up with Harry Potter to face a new dark wizard threat. Maybe she uses her knowledge of Japanese magic (assuming she has some in the fanfic) to complement Harry's Western magic.
I'm not entirely sure if there are a lot of 'Harry Potter uses revolvers' fanfictions. It's not a very common trope in the general 'Harry Potter' fanfiction community. Most fanfictions tend to focus on the relationships between characters, exploring new magical concepts, or alternative storylines within the magical world. But given the creativity of fans, it's possible that a few exist here and there.
There are probably some. These fanfictions might combine the charm of the Harry Potter universe with the high - tech aspect of cybernetics. For instance, a cybernetic spell - casting device could be introduced. The idea is really creative as it mixes the old - fashioned magic of Harry Potter with the futuristic concept of cybernetics. It gives a whole new perspective to the characters and the story. You may need to use specific search terms on fanfiction platforms to find them.
One possible fanfiction could be 'The Muggle - Wizard Hybrid Arsenal' where Harry discovers a hidden cache of guns in the Forbidden Forest and has to learn how to use them to defend Hogwarts against a new dark threat that is immune to magic. Another might be 'Guns and Magic: Harry's New Arsenal' which shows Harry integrating guns into his dueling techniques, creating a whole new style of combat in the wizarding world.
Yes, there are likely some. Some fanfictions might use 'hell eyes' as a symbol of a character's dark past or a connection to the dark arts. For instance, a character who was once involved in a dark wizarding cult might have 'hell eyes' as a mark of that experience.
It's popular because it creates a new dynamic. Snape and Harry had a complex relationship in the original series. Fanfiction writers like to explore how Snape, with his deep knowledge and skills, can impact Harry's journey in different ways.
The popularity of such fanfictions might be limited as it's a rather specific and somewhat unusual concept. But perhaps in some fanfiction communities that like to explore unique and humorous scenarios, there could be a few that are well - liked. For instance, if a writer manages to blend the 'Harry Potter' magic with the comical idea of the characters in Speedos in a really clever way, it might gain some popularity among those who enjoy that kind of off - beat fanfiction.
I'm not sure specifically about the most popular ones, but there are likely quite a few out there. You can check fanfiction websites like Archive of Our Own or FanFiction.net. Just search for 'Harry Potter raised by vampires' and you'll probably find some interesting reads.
Popular 'Harry Potter' fanfictions usually revolve around the magical elements, the relationships between characters like Harry, Hermione, and Ron, and the exploration of the wizarding world. Drugs simply don't have a place in these typical fanfiction topics. While there may be some extremely out - there fanfictions that exist, they would not be considered popular given the nature of the 'Harry Potter' fanbase.