A Godlike Harry Potter might be integrated as a powerful ally against a common enemy. For example, if there's a new and extremely powerful type of Grimm or a dark force emerging in the RWBY world, his unique abilities could turn the tide of battle. He could also have his own arc within the RWBY fanfiction, perhaps learning about the unique Dust - based magic in RWBY while sharing his own wizarding knowledge.
In RWBY fanfiction, a Godlike Harry Potter could be introduced as a mysterious figure from another dimension. He initially might be misunderstood due to his strange powers. But as the story progresses, he starts to bond with the RWBY characters. He could help in situations where brute force doesn't work, like using his magic to unlock ancient secrets or solve complex puzzles that are crucial for the survival of the RWBY world. His presence would add a new layer of mystery and power to the existing storylines.
He could fit in as a new kind of hero. His magic would be something unique compared to the existing powers in the Marvel world. He might join the Avengers and use his spells during battles. For example, he could stun enemies with a simple 'Stupefy' spell or create a large magical explosion with a more powerful incantation.
They could fit in as a new and powerful force. Maybe they are hidden in the shadows, secretly influencing events. For example, they could be behind some of the dark magic incidents that happen in the fanfiction.
It could be a character who combines the most powerful magic from Harry Potter, like the Killing Curse, with the strongest semblance in RWBY. For instance, if a character could use the Killing Curse and also had a semblance that allowed them to control time like Ruby's, they would be extremely powerful.
He could use his invisibility cloak for stealth missions with the Avengers.
In the RWBY world, the female Harry Potter's character would be an interesting addition. Her Hogwarts education has given her a wide range of knowledge. She could use her knowledge of magical creatures to help RWBY characters understand some of the more mysterious aspects of their own world. Her ability to apparate, if it worked in the RWBY world, would be a great asset for quick escapes or surprise attacks. Also, her experience with Horcruxes might give her some unique insights into Salem's immortality situation. She would probably form strong bonds with the RWBY characters over time, sharing her own story of growing up as an orphan and fighting against great odds.
Harry Potter himself could be seen as a kind of foreign wizard in the RWBY world. He might be initially confused by the concept of Dust but quickly adapt and use his magic to enhance the RWBY team's capabilities. Hermione would probably be fascinated by the study of Dust and Semblances, and use her vast knowledge to help bridge the gap between the two magic systems. Ron could be the one who forms quick friendships with the RWBY characters, sharing his sense of humor and loyalty.
In RWBY fanfiction, a Godlike Harry Potter might possess extraordinary magical abilities far beyond what's seen in the original Harry Potter series. He could use his magic to effortlessly defeat Grimm, perhaps with a single spell. His presence would likely disrupt the power balance in the RWBY world, as his knowledge of advanced magic could give him an edge in battles and problem - solving.
The concept of Animagus in an Avengers fanfiction could also be used for character development. Suppose an Avenger discovers they have the potential to be an Animagus. This would open up a whole new side of their personality. They would have to learn about magic, which is very different from their usual super - power knowledge. This could lead to interesting interactions with other characters, like Thor, who might be intrigued by this new form of power.
Supergirl could be a foreign exchange student of sorts in the Harry Potter universe. She could be there to study magic while also sharing her own Kryptonian knowledge. Her superpowers would make her stand out, but she would also have to learn the rules of the wizarding world, like not using her powers when it's against the wizarding code.
One interesting concept could be the combination of magic from Harry Potter and the unique abilities in RWBY. For example, seeing how a character with Harry Potter - style magic would interact with the Grimm in the RWBY universe. Maybe they could use spells like 'Stupefy' to stun the Grimm instead of relying solely on their weapons.