Percy could use his water - controlling powers to manipulate the magical energies associated with Doctor Fate. Maybe he could create water - based defenses or attacks within the magical constructs of Doctor Fate's powers.
Yes, there might be. The Harry Potter and Doctor Fate universes are both rich in magic and mysticism, so it's not surprising that some fans might be inspired to create a crossover fanfiction where Harry Potter is a fan of Doctor Fate or has some sort of connection to the Doctor Fate mythology. However, I'm not sure how common or well - known such a fanfiction is.
One of the best stories might be his origin story. It shows how he came to possess the powerful magical artifacts and the responsibilities that came with them. His battles against dark magic entities are also great stories. For example, when he faced off against a powerful demon trying to break through into our world. He used his magic skills and knowledge to seal the portal.
One possible plotline could be Naruto somehow obtaining the powers of Doctor Fate and using them to protect the Hidden Leaf in a different way. Maybe he uses Doctor Fate's magic to fight against threats that normal ninja techniques can't handle.
One of the best is 'Doctor Fate' #1 - 4 from the 1987 series. It delved deep into the character's origin and his early battles. Kent Nelson's struggle to master the powers of Doctor Fate was well - portrayed.
I'm not sure of a specific 'Naruto is Doctor Fate' fanfiction off the top of my head. But you can try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own. They usually have a wide variety of crossover fanfictions.
Doctor Fate's origin dates back to the discovery of the Helmet of Fate. Kent Nelson, while on an archaeological expedition with his father, stumbled upon the helmet in an ancient tomb. Nabu, who was linked to the helmet, then chose Kent to be his host. This began Kent's journey as Doctor Fate. His origin story is filled with elements of mystery and magic, as he had to learn to control the vast powers that came with the helmet, powers that were both a gift and a great responsibility.
One possible plot could be that Harry Potter somehow gets transported to the world of Doctor Fate. There, he learns about Doctor Fate's powers and has to adapt to a new kind of magic. He might then use this knowledge to fight a common enemy that threatens both his wizarding world and the world of Doctor Fate.