Well, it could be a really interesting story. Raiden is from a different fictional universe, so he might bring some unique skills and values to raising Harry. Maybe he'd teach Harry some super combat skills like he has in his own world. Harry would probably grow up with a different kind of discipline and power control compared to what he would have learned at Hogwarts under the Dursleys and later at the school. It could also change his view on magic and how to use it for good in a more action - oriented way.
One possibility could be that Hestia imparts her wisdom of the wizarding world to Harry in a very nurturing way. Since Hestia is the goddess of the hearth, she might create a warm and loving home environment for Harry, which is very different from his experience with the Dursleys. This could lead to Harry having a more stable emotional foundation as he grows up, and perhaps he would be less impulsive in his actions at Hogwarts.
One possible storyline could be that Sebastian, with his own set of values and skills, trains Harry in a different form of magic. Maybe he emphasizes more on the practical and less - known aspects of magic. This could lead Harry to have a unique approach to dealing with threats in the wizarding world compared to his original upbringing.
Well, one possibility is that Harry would grow up with a different set of skills. Yoruichi is very agile and stealthy in her own universe. So Harry might be trained in those areas from a young age. He could be a master of movement and disguise, which would give him an edge in the wizarding world that others don't have.
Well, it could be that the Greek gods see Harry as a special being. They raise him on Mount Olympus. He would be taught by Athena in wisdom, so he'd be not only a powerful wizard but also extremely intelligent. His upbringing among the gods would give him a different perspective on good and evil. When he returns to the wizarding world, he'd use the values and powers he gained from the Greek gods to fight Voldemort. Maybe he'd use the gift of prophecy from Apollo to foresee Voldemort's moves.
One possibility is that Sirius would teach Harry all about his family's history in a more private and laid - back setting in France. He might introduce Harry to different magical cultures unique to France, like the Beauxbatons Academy. Harry could grow up with a more carefree attitude, away from the prying eyes of the British wizarding world.
This statement could imply a number of things. Firstly, it could suggest a desire to see two very distinct fictional worlds collide. Perhaps the author wants to explore how Harry Potter, a character known for his intelligence and magical abilities, would fare in a world influenced by Raiden's powers and the Mortal Kombat universe's rules. It could also imply a new take on the Harry Potter story, where instead of the usual magic, there are elements borrowed from Raiden's character, like his role as a protector or his ability to control lightning. This kind of fanfiction concept allows for a lot of creative exploration outside the boundaries of the original Harry Potter and Mortal Kombat canons.
Well, one possibility is that Harry would be trained in combat and stealth from a very young age, much like Damian Wayne was by Talia. He might grow up with a different view of magic, perhaps more as a tool for survival and power rather than just for study at Hogwarts. Also, his relationship with the wizarding world could be very different. Instead of being excited about Hogwarts, he might see it as a place full of naive wizards who don't understand the real world threats he's been raised to face.
One possible plot could be that Harry discovers his true heritage as the son of Raiden. He then has to learn to control new powers that come with this heritage. Maybe he can summon lightning like Raiden and use it against Voldemort. This would completely change the dynamic of the battles in the wizarding world.
One possible storyline could be that Bellatrix, despite her dark past, has a change of heart due to some magical influence or a deep - seated love for the Potter family. Sirius, of course, would be a positive influence. They might raise Harry in a more unorthodox way, teaching him both light and dark magic in a balanced way so he can understand the full spectrum. This could lead to Harry being a more powerful and empathetic wizard, able to bridge the gap between different magical factions.
Well, in this fanfiction scenario, Lily raising Harry would mean he'd be protected in a different way. Instead of the Dursleys' neglect, he'd have a nurturing environment. Lily could teach him about his father in a more personal way. Maybe he'd grow up with a stronger sense of family and heritage. Also, he might not have the same sort of scar - or it could be a mark of a different kind of magic, since the circumstances of his survival would be different.