Well, he might encounter a whole new set of magical and non - magical challenges. Sunnydale is known for its vampires and demons, so Harry would probably have to use his magic in different ways compared to Hogwarts. Maybe he'd team up with the Scooby Gang to fight the forces of evil there.
In this fanfiction, Harry might also meet Willow, a powerful witch in Sunnydale. Their interaction would be fascinating as they both have magical abilities but learned and practiced magic in very different ways. And of course, he could meet Xander, who might initially be skeptical of Harry but later become his friend as they fight side by side against the various threats in Sunnydale.
Well, perhaps Harry could bring his magic skills to Sunnydale and use them to fight the demons there. He might team up with the local Scooby Gang and together they face new and more powerful threats.
The Scooby Gang might be a bit skeptical at first. They are used to dealing with their own brand of supernatural, and Harry's magic would be something new. But they'd probably warm up to him once they see how useful his skills can be in fighting the demons.
Harry might meet some American wizarding families that have long - standing traditions different from the pure - blood families in the UK. These families could introduce Harry to new forms of magic and social norms within the American wizarding community. He could also meet American Muggle - born wizards who have their own unique stories of discovering magic in a different cultural context compared to what he's used to.
Harry could encounter a group of wizarding surfers. They use magic to enhance their surfing experience, like creating perfect waves or making their boards fly over the water. They introduce Harry to a more laid - back side of the wizarding world in California.
Yes, there might be. There are many fanfic communities out there where such crossovers could exist. You could start by checking popular fanfic websites like Archive of Our Own or Fanfiction.net.
Scarecrow could also be a main antagonist. His fear - inducing toxins could be a real problem for Harry. Harry would have to use his magic to counter the effects of the fear toxin and also figure out a way to stop Scarecrow from spreading it all over Gotham.
He could meet Scott McCall. Scott, being a werewolf, would be intrigued by Harry's magic. They could become friends and learn from each other. Harry could help Scott better control his werewolf side using magic, and Scott could show Harry how to survive in Beacon Hills' supernatural chaos.