Who could be the servant that Harry Potter summons in the fanfic?

Well, in such a fanfic, Harry might summon a servant with unique powers. Maybe the servant could help him in his battles against Voldemort. For example, the servant could have the ability to detect dark magic from afar, allowing Harry to be more prepared for attacks.

Another possibility is Winky. She is also a house - elf. Winky was a bit of a tragic character in the original books. In the fanfiction, if Harry were to summon a servant, her meek and somewhat lost nature might make for an interesting addition to Harry's side, and she could be summoned to help Harry with various tasks.

The servant could do household chores. Just like how house - elves in the Harry Potter world usually take care of cleaning, cooking, and keeping the place tidy. For example, if Harry is living in Grimmauld Place, the servant could make sure the old and gloomy house is clean and habitable.

I'm not entirely sure if there is a specific 'Harry Potter summons the devil' fanfic. Fanfiction is a huge realm with all kinds of ideas. But in the official Harry Potter universe, magic is more about good - evil magic like summoning the devil is not in line with the main story. It could be a very niche and probably not very popular idea among the more traditional Harry Potter fans.

Well, one possible plot could be that the servant Naruto summons is from a future time. This servant has knowledge of events that are yet to happen in the Naruto world. Naruto then has to use this knowledge wisely while also keeping the servant's origin a secret from others who might misuse it.

One idea could be that Harry discovers an ancient spell in the restricted section of the library that has the power to summon Echidna. He summons her in a time of great need, like when Hogwarts is under a new dark threat. Echidna, being a mythical and powerful creature, could offer her unique knowledge or abilities to help Harry and his friends fight off the danger.

Harry Potter himself could be the Servant of God. Given his central role in the original series, it would make sense for him to take on this new identity in the fanfiction. He has always been a figure of good, and this could be an extension of his character arc, where he now serves a higher power in a more direct way.

There is also a possibility that it's an unknown powerful wizard from a far - off land. This wizard has heard of their reputations and summons them to learn from them or to ask for their assistance in a matter that is crucial to his own land's magical stability.

Manda might be a long - lost friend of Harry's family. Maybe she was thought to be dead, but Harry discovers a way to summon her through some ancient magic. She could then play a role in revealing secrets about Harry's family past.

Many fanfics depict the order summons as a form of enchanted parchment. The sender writes the details of the summons on the parchment. Once it's complete, the parchment magically replicates and finds its way to each member of the order. The parchment might have a special seal or symbol that only the members recognize, ensuring secrecy and authenticity.