Well, a significant theme is likely to be the power of magic in the context of exorcising dark forces. In the Harry Potter world, magic has many forms and functions. In this type of fanfiction, it would be focused on using magic to combat malevolent spirits or demons. Also, there could be a theme of redemption. Maybe some of the dark entities have a backstory that leads to a chance for redemption through the actions of the characters. And of course, the theme of friendship and teamwork would still be present as Harry and his friends would need to work together to face these new and terrifying threats.
One main theme could be the battle between good and evil. Just like in the original Harry Potter series, but with an exorcist twist. Another might be the exploration of the unknown and the supernatural. For instance, dealing with entities that are beyond the normal magical creatures in the Potterverse.
One common theme is the clash of different forms of magic. In the Harry Potter world, magic is more structured and has rules, while exorcist - related magic is often more about spiritual and religious elements. Fanfictions often explore how these two types of magic interact when they meet. For example, a wizard might be confused by the unorthodox methods of an exorcist.
One common theme is the clash of different magical systems. Harry Potter has its own kind of magic with wands and spells, while Blue Exorcist has exorcism techniques. Another theme is friendship. Characters from both series often form new friendships or have to deal with differences in how they view friendship. For example, a Hogwarts student might be more used to having friends within their own house, while in Blue Exorcist, friendships are formed based on different criteria at the True Cross Academy.
A frequent theme is the idea of characters from different worlds coming together. For instance, Harry Potter and Rin Okumura might meet and form an alliance. Another theme could be the exploration of good and evil in both universes. In 'Harry Potter', there are dark wizards, and in 'Blue Exorcist', there are demons. Fanfictions might show how the characters from each world deal with the concept of evil. Also, the theme of friendship across different magical realms is quite common, as characters build relationships despite their different backgrounds.
If Harry Potter becomes an exorcist in fanfiction, it would be really interesting. He'd probably bring his Gryffindor courage to the job. He could use his invisibility cloak to sneak up on demons or ghosts. And his Firebolt could help him quickly reach places where exorcisms are needed. Also, his friends Hermione and Ron might join him, with Hermione researching about the spirits and Ron providing some comical relief during the spooky exorcist work.
Yes, there are some. You can check fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Harry Potter Exorcist' and you'll find various works. Some might combine the magical world of Harry Potter with elements of exorcism in really creative ways.
One of the main themes is power and its consequences. When the Rinnegan, which is a very powerful ability, is introduced into the Harry Potter world, it often explores how having such power can affect the character's relationships and their place in the wizarding society.
Faith and hope are also prominent themes. The characters might find strength in their faith, whether it's in a higher power or in the goodness of others. For instance, when facing difficult situations like the threat of Voldemort, they hold on to hope and believe that good will ultimately triumph, which is similar to the Christian belief in God's plan and the victory of good over evil.
One main theme is the clash of different power systems. Since the Kyuubi has its own set of powers from the Naruto universe and Harry Potter has magic, seeing how they interact and sometimes clash is a big theme.
Another theme is power and its corrupting influence. Circe is a very powerful witch in Greek mythology, and when she meets Harry, there's often a struggle for power or a test of who can resist the allure of more power. This can be seen in fanfictions where Circe tries to manipulate Harry into using dark magic for her own ends.
Self - discovery is a major theme. In many such fanfictions, characters like Harry are on a journey to find out more about themselves, their powers, and their place in the wizarding world. For instance, they might discover hidden magical abilities they never knew they had.