Well, it changes a lot. Firstly, Harry's identity would make him stand out even more. Instead of just being the boy who lived, he's now the son of a major Hindu deity. This could mean that he has different kinds of magic at his disposal. For example, he might be able to use some form of divine protection magic that is unique to Shiva's lineage.
It changes it a great deal. Firstly, Harry's origin is completely different. Instead of being an orphan with a mysterious connection to Voldemort, he now has a connection to the Beyonder. This alters his self - discovery journey. He's no longer just finding out about his role in the wizarding world against Voldemort, but also about his otherworldly heritage.
The whole dynamic of the fight against Voldemort would shift. If Harry were Snape's son, Snape's loyalty and actions throughout the series would be re - evaluated. Harry might have access to different knowledge and skills that Snape could pass on. His connection to the Dark Arts might be more nuanced. Also, the way the other Hogwarts professors treat Harry would be different. They might be more cautious or more expectant of him, given his new family connection.
It changes the magic system. Instead of just relying on wands and spells, Harry can now access Pegasus - related magic. For instance, he might be able to heal faster like Pegasi are known for their resilience. It also changes his social status. He is no longer just a famous wizard, but also a mythical being's son, which makes him more of an enigma.
Well, it changes the story in multiple ways. If Harry were the son of Dean Winchester, his early life would be filled with knowledge of the supernatural that isn't strictly magical. His father's hunting skills and knowledge of the non - magical but still otherworldly creatures would shape his view of the world. When he enters Hogwarts, he might be seen as an oddity. His way of thinking and reacting to situations would be different. For instance, he might be more skeptical of some of the Hogwarts traditions as he's been raised with a more 'practical' view of the supernatural. His interactions with teachers and classmates would be colored by his unique background, and he might even introduce some new ways of dealing with magical threats based on what he learned from Dean.
It changes it a great deal. In the original, Harry was a hero, but still a mortal with limitations. In 'Harry is God' fanfiction, he has unlimited power. For example, he can instantly defeat Voldemort without a big battle. He can also change the very fabric of the wizarding world, like creating new spells or magical creatures.
Well, in the original story, Harry is not a millionaire. In fanfiction, his new wealth can change his relationships. For instance, some characters might befriend him just for his money. It also changes his power dynamics. He can now influence things more easily, like getting better equipment for Quidditch or funding the Dumbledore's Army more lavishly.
The concept changes the original story a great deal. Firstly, Harry's personality would be different. Instead of the kind - hearted boy we know, he might be more cynical due to IT's influence. Secondly, his relationships would change. His friends might be more wary of him. Also, the way he approaches magic could be altered. He may use magic in more unorthodox and perhaps darker ways.
Well, it completely changes the family dynamic. Instead of being related to the Potters and the Dursleys, he has a connection to two very different and powerful wizards. This would likely mean a different upbringing and set of values.
His relationships with the other characters are also altered. Dumbledore, for example, had a big role in Harry's life in the original story. But if Harry is Grindelwald's son, Dumbledore's attitude towards him might be more complex. Dumbledore had a history with Grindelwald, and this new connection could make Dumbledore both more protective and more wary of Harry. The same goes for other characters like Snape. Their interactions with Harry would be colored by this new family connection.
It changes the power dynamics. In the original, Harry had some level of protection within Hogwarts. But as a fugitive, he has to rely on his own wits and skills more. So, the fanfiction concept makes him more self - reliant.