What are some unique plot ideas for Avatar Harry Potter fanfiction?

In a crossover fanfiction, the Sorting Hat could end up on Pandora. The Na'vi are confused by this strange object. One of the Na'vi tries it on and it sorts the Na'vi into Hogwarts houses based on their characteristics. This could lead to some Na'vi being selected to study at Hogwarts, and they bring their own unique skills and knowledge of Pandora's magic, which causes quite a stir among the students and faculty at Hogwarts.

Perhaps in this fanfiction, there could be a group of magical bats that are guardians of an ancient Hogwarts secret. Harry, as he befriends them in his bat form, gets drawn into this mystery. These bats could have their own language and culture that Harry has to learn. For example, they might communicate through a series of ultrasonic sounds that only a bat - like Harry - can understand. This could lead to a whole new adventure for Harry, separate from the main battles against Voldemort but still relevant to the overall protection of the wizarding world.

One unique plot idea is time - travel. For example, a character going back in time to change a crucial event in the wizarding world. Another is the idea of a Muggle - born wizard creating a new form of magic that combines Muggle technology and wizardry. And there are also stories where characters from different Hogwarts houses have to team up in unexpected ways to face a common threat.

One unique plot idea could be a time - travel scenario where Harry goes back in time and has to work with Lily to prevent Voldemort's rise without changing too much of the future. Another could be an alternate universe where Lily survives and she and Harry have to face new threats together.

How about a story where the magic in the Harry Potter world starts to fade, and they seek the help of Naruto and his chakra - based powers? Naruto then tries to find a way to restore the magic, and in the process, they discover a hidden connection between the two worlds that was long forgotten. This would involve a lot of exploration, both in terms of the physical worlds and the magical concepts in both universes.

A unique plot could be that the Issa Brothers have a special power that can break dark magic spells in the Harry Potter universe. They use this power to help Harry and his friends when they are trapped by Voldemort's dark magic.

One plot could be that Viper has a spell that can control minds, and she uses it on some of the Hogwarts students. Harry Potter discovers this and tries to find a way to break the spell. Loki, being the mischievous one, initially seems to be helping Viper but then has a change of heart and joins Harry to save the day.

Perhaps a story where Harry discovers a hidden connection between his parents and Alice Longbottom. Maybe his mother had a secret friendship with Alice, and through this connection, Harry uncovers a powerful magic or a long - forgotten prophecy that involves both of their families. This could lead to a whole new adventure where they have to work together to fulfill the prophecy and save the wizarding world. In this plot, they might have to face challenges not only from the dark side but also from the wizarding establishment that doesn't want the truth to be revealed.

One unique element is the combination of magic systems. In 'Harry Potter the Last Avatar' fanfiction, we can see how spells from Harry Potter and bending from Avatar can co - exist. For example, a character might use the Avada Kedavra spell while another bends water to defend against it.

One idea could be that the Avatar characters gain the ability to use magic when they enter the Harry Potter world. For example, Aang could use his airbending skills along with magic spells to fight against the Death Eaters. Another could be that Hogwarts students are sent to the Avatar world for a special exchange program, and they have to learn to bend elements instead of casting spells.