It could be about a story where Harry Potter is the son of a person who is charmed in some way. Maybe this 'charmed one' has some special powers or a unique background that influences Harry's life in the fanfiction world. It might explore new adventures, relationships, or powers that Harry has because of his connection to this 'charmed one'.
Harry Potter is the central figure. Then, the 'charmed one' which could be a previously unknown character or a new take on an existing character from the Harry Potter universe. There might also be antagonists. Maybe some dark wizards who want to use Harry's connection to the charmed one for their evil purposes. And of course, Dumbledore or other Hogwarts professors might play important roles as they often do in stories related to Harry, guiding him and helping him understand his new situation.
There could also be other characters from the Harry Potter universe like Hermione and Ron. They might be involved in helping Harry navigate this new world of being connected to the Charmed Ones. And from the Charmed side, there could be Leo, their Whitelighter, who might have some interesting interactions with the magical folk from Harry's world.
One key element could be how Harry's 'charmed' status affects his relationships. For example, it might change how his friends view him or interact with him. Another element could be his newfound abilities or powers that come with being 'charmed'. It might also explore how the wizarding world as a whole reacts to Harry having this special status.
There could be a really interesting fanfiction where the magical worlds of Charmed and Harry Potter collide with Harry and Maggie. Maybe they team up to fight a new kind of dark magic that threatens both their realms. They could each bring their unique magical abilities to the table. Harry with his wizardry from Hogwarts and Maggie with her powers as a Charmed one.
Perhaps there could be a plot where Harry teams up with the Charmed Ones to fight a common dark force that threatens both the wizarding world and the world of the Charmed Ones. This would involve a lot of strategizing and combining their different magical abilities.
In the original story, Harry was just an ordinary wizard (in the sense that he didn't have a 'charmed' birth). In this fanfiction, his charmed birth might give him abilities that he didn't have in the original. For example, he could have a natural affinity for all types of magic from the start, while in the original he had to learn and struggle like other wizards.
One common theme is the exploration of different magical powers. Since both universes have their own unique magical elements, fanfictions often focus on how these powers interact. For example, the spell - casting in Harry Potter and the power of three in Charmed.
Well, they might meet in a magical crossroads. Harry could be on a mission related to the wizarding world and Maggie could be dealing with a demon in her Charmed world. And they just happen to cross paths. They'd be initially confused but then intrigued by each other's powers.
One common theme is the discovery of new powers. Since the female Harry Potter is now part of the Charmed world, she has to figure out how to use their unique powers in addition to her own. Another theme is the clash of two different magical cultures. The Potterverse magic and the Charmed Ones' magic are quite different, so there's often a lot of exploration of how they interact.