The story would take a very different turn. Harry Potter becoming Gabriel's vessel means that the themes of the story could expand beyond just good vs. evil in the wizarding world. It could introduce elements of the divine and the spiritual. His journey would no longer be just about the wizarding world's politics and power struggles. He might start to attract different kinds of allies and enemies. There could be a whole new set of challenges, like how to balance his wizard identity with his new role as Gabriel's vessel. And his connection to the wizarding world's magic might be altered, perhaps enhanced or even changed in a way that makes him an outlier among wizards.
Well, in such a fanfiction, Harry Potter might gain new powers or abilities from being Gabriel's vessel. He could potentially use these to fight Voldemort in a more unique way. Maybe he'd have access to angelic magic that no one in the wizarding world has seen before.
The tone would become much darker. Instead of the usual heroic and somewhat light - hearted adventures, there would be a sense of dread and unease. The magic would likely have a more sinister edge to it.
The story would change drastically. The whole dynamic of the wizarding world would be different. Instead of fighting dark wizards with spells, Harry would be dealing with the implications of being a genie. His relationships with other characters would shift as they would now see him as a being with the power to grant wishes.
The story would be completely transformed if Harry Potter becomes a ghost in fanfiction. Firstly, the way he experiences the wizarding world would be novel. He could float around Hogwarts, seeing things from new angles. His relationship with Hermione and Ron would become more complex. They would have to deal with the fact that their friend is no longer fully alive. In terms of the overall plot, the fight against evil could take a different turn. Harry as a ghost could perhaps access areas that were previously off - limits to the living, like certain dark corners of the Forbidden Forest. This could lead to new discoveries about dark magic or ancient secrets. His new form could also attract the attention of other supernatural entities in the wizarding world, leading to new alliances or conflicts that weren't possible when he was alive.
The story would change a great deal. His identity within the wizarding world would be questioned. People might be afraid of him or see him as an outcast. His ability to interact with others would be different. He might be more solitary due to his Lamia nature.
Suppose Harry becomes a hippogriff. His sense of pride and honor would be enhanced as hippogriffs are very proud creatures. He would need to be treated with respect, and he would also have to learn to interact with wizards and witches in a different way. His physical strength and ability to fly at high speeds would make him a formidable presence. He could use these new abilities to fight against dark wizards in a more unexpected way, perhaps swooping down from the sky and catching them off guard.
If Harry Potter becomes a Hollow in fanfiction, the entire narrative would be overhauled. The traditional plotlines of him fighting against the dark forces in the wizarding world would be replaced. His friends would no longer be able to rely on him in the same way. For example, his Gryffindor courage might be replaced with a more reckless and dangerous behavior. His magical abilities could be used in unpredictable and harmful ways. The Hogwarts environment would also change as the school tries to deal with the threat that a Hollow - Harry presents. Teachers would have to figure out new ways to protect the students, and the once - safe haven of Hogwarts could become a place filled with fear and uncertainty.
The characters around Harry would likely change. Some minor characters might become more important, and some major characters could be sidelined. For instance, Neville Longbottom could become the main hero instead of Harry in some scenarios.
The plot would become very dark. Harry would no longer be the hero, so the fight against Voldemort would likely take a different turn. Maybe Voldemort would see Harry as an ally instead of an enemy. The other characters would have to either try to change Harry back or find a new way to defeat Voldemort without Harry's help.
If Harry Potter becomes part of a Pokemon fanfiction, his life would change in many ways. Firstly, his daily routine would be different. Instead of going to magic classes, he'd be out in the wild looking for Pokemon. His friends might also change as he'd befriend other Pokemon trainers. His relationship with magic might even be affected. He could start using magic in new ways related to Pokemon, like using spells to communicate with them. And his sense of adventure would be redirected towards exploring the different regions in the Pokemon world.