A frequent theme is the idea of good versus evil on a grander scale. Harry Potter represents the side of good in his world, and Sauron is the ultimate evil in his. When combined, it's about seeing how the fight between good and evil plays out in a new and complex scenario. For example, the characters from Harry Potter might have to adapt their ideas of evil when faced with Sauron's level of malevolence. Another common theme could be the power struggle. Sauron is known for his thirst for power, and in the Harry Potter universe, there are also those who seek power, like Voldemort. Fanfictions may explore how Sauron's presence affects the power dynamics already in place in the wizarding world.
Common themes include the corruption of power. Since Sauron is a symbol of corrupt and overwhelming power, in 'Harry Potter Sauron fanfiction', it could be shown how that kind of power might tempt characters in the Harry Potter world. Also, the theme of unlikely alliances might be present. Maybe some characters from the Harry Potter side, who are usually on the side of good, are forced to make a deal with Sauron or his forces for some greater good in their world. And of course, there's the theme of the battle for survival. With Sauron's threat looming, the characters in the Harry Potter universe would have to fight not only for their own world but also for the very existence of magic as they know it.
A common theme is the struggle between good and evil. Galadriel represents good, and Sauron is the epitome of evil. Their interactions in fanfiction often highlight this contrast. Another theme is temptation. Sauron might try to tempt Galadriel with power, similar to how he tempted others in the original stories.
Power struggle is a common theme. Naruto is a powerful ninja and Sauron is a powerful dark lord. Their clash or potential alliance often revolves around power. For instance, they might fight over control of a certain magical artifact or territory.
One possible plot could be that Sauron somehow manages to enter the wizarding world. Maybe through a powerful dark magic spell that links the two universes. Harry, being the hero, senses the new and greater evil. He then has to figure out how to defeat Sauron, which is much more difficult than any foe he has faced before. He might have to learn about the power of the One Ring and how to destroy it, all while protecting Hogwarts and the wizarding world from Sauron's dark minions.
One common theme is the idea of redemption through love. Since Sauron is an evil character in the original lore, fanfiction often explores if he can be redeemed by the love of another. Another theme is the power struggle within a relationship. When a character from another world or story crosses over and gets involved with Sauron, there is often a battle of wills as Sauron is a very powerful being.
Power is also a big theme. They are both powerful beings, and fanfictions often look at how they use and share power. Sometimes it's about one trying to gain more power over the other in a subtle power play.
Power and corruption are likely common themes. The black hand being a symbol of Sauron's power, it could show how that power corrupts those who come into contact with it.
One common theme is power. Sauron is a symbol of great and corrupt power in 'The Lord of the Rings', and in Star Wars fanfiction, this often translates to him seeking ultimate power in the galaxy. Another is the clash of good and evil. The Jedi representing good and Sauron as extreme evil creates an interesting dynamic.
Well, one possibility could be that Harry discovers his true parentage as Sauron's son in a very shocking way. Maybe through some dark magic revelation. Then he might struggle with his identity, being a part of the wizarding world that he loves but also having this dark connection. He could face a lot of inner turmoil as he tries to decide whether to embrace his dark heritage or fight against it.
One possible plot could be that Harry Potter grows up in Mordor. Sauron might train Harry in dark magic, but Harry could have an internal struggle as he has an inherent sense of good from his parents. He might try to find a way to use the power he's learning for good, against Sauron's wishes.
In a fanfiction where Harry Potter fights Sauron, Harry would be at a disadvantage in terms of raw power. Sauron is an ancient and extremely powerful being. However, Harry has his courage and quick thinking. He could use his ability to solve mysteries and puzzles. He might figure out a way to destroy the One Ring, which would be a huge blow to Sauron. But it wouldn't be easy as Sauron would be constantly trying to stop him.