Well, it could be really wild. Maybe Harry Potter would use his magic in the world of the Avengers. He might teach Doctor Strange some new spells or have a magical duel with Thor. It would be a crazy mix of two very different universes.
In a 'Harry Potter Kills a God' fanfiction, the story could start with Harry stumbling upon a hidden prophecy or an ancient mystery that leads him to this confrontation. The god he kills might be an evil or corrupt one. To achieve this, Harry might have to journey to different magical realms, learn from powerful wizards or creatures, and face numerous challenges that test his physical and mental strength. It would also change his character, as killing a god would have a huge impact on his view of the world and his place in it.
The plot could involve Harry using his magic in ways that mimic the powers of a God Slayer. For example, he might be able to defeat dark creatures with a new kind of magic that has elements similar to God Slaying powers. Maybe he discovers an ancient magic that is related to the concept of slaying gods and has to use it to save the wizarding world from a new, extremely powerful threat that is almost god - like in nature.
It could be a very strange and interesting story. Harry might have some sort of divine powers in addition to his wizarding abilities. Maybe he could perform miracles or have a special connection to a higher power that helps him in his battles against Voldemort.
Well, it could be that Harry is raised by a god who imparts some extraordinary powers to him. Maybe he would have a different kind of magic, not just the Hogwarts' style. He could be more in tune with nature or have some celestial - like abilities.
You can find 'god like harry potter fanfiction' on some popular fanfiction websites like Fanfiction.net or Archive of Our Own (AO3). Just search for the relevant keywords like 'god like harry potter' and you'll get a list of stories.
One great 'god like harry potter fanfiction' is 'Harry Potter and the Power of the Mind'. In this story, Harry discovers he has extraordinary mental powers that set him apart. Another is 'Godlike Harry at Hogwarts' where he has abilities far beyond normal wizards and uses them to reshape the wizarding world. There's also 'The God - Like Potter' which shows Harry with almost omnipotent powers and how he deals with the moral implications of such power.
Well, 'The Ascension of Harry' is a fanfiction where Harry becomes a god. This happens when he discovers an ancient magical artifact that grants him divine abilities and a new destiny.
Perhaps it could be Thor from Norse mythology. Thor is the god of thunder. So, Harry could have the power to control lightning or storms. He would be a very formidable wizard with such powers. His Hogwarts years would be full of situations where he uses these thunder - related powers to solve problems or fight off enemies.
Well, he could probably use his god - like power to end all the dark magic threats once and for all. Maybe he could even reform the Ministry of Magic to be more just and efficient.