Harry Potter villain system

" The Strongest Villain System " was an online novel. The villain system was a mysterious prop that could allow a character to become a villain and obtain powerful abilities to walk the path of evil. The villain system was originally obtained by the protagonist in some way. At first, he did not know the existence of this system until one day, he accidentally triggered this system and the villain system began to take effect. In the system, he obtained various powerful abilities such as controlling time, space, matter, etc. These abilities allowed him to easily create various weapons, props, and medicines, and he could control the actions of others. As time passed, the protagonist gradually realized the function of this system and began to use it to achieve his goals. He became an evil character and began to retaliate and attack other characters in an attempt to seize their resources and power. In this system, the protagonist gradually lost his principles and beliefs and became a cold, cruel, and bottomless character. The villain system became an important factor in the protagonist's path to destruction, and it was also one of the main storyline of the entire story.

The Evolved Villain System was a type of online fantasy novel. It usually described a villain who used some mysterious power or technology to change his original identity and personality into a righteous character and then engaged in an intense battle with the protagonist. The evolutionary villain system usually involved some technological or magical elements. The protagonist would usually fight against the villain through continuous learning and evolution. In the process, he would reveal the truth and conspiracy behind the villain. These novels often have complex plots and worldviews, full of imagination and mystery, and are very popular among young readers.

It could be a new character created by the fanfiction author. Maybe a powerful wizard who was once shunned by the wizarding community and now wants revenge by stealing magic.

A dark wizard who has merged the dark arts with Wonderland's magic could be the main villain. He might have created some sort of dark Wonderland where all the creatures are under his control, and Harry has to break this control to restore balance.

It could be a Death Eater who has somehow made a pact with a powerful force from Scorpian's world. This villain would be extremely dangerous as they'd combine the dark magic of the Harry Potter universe with the unknown and potentially deadly powers from Scorpian's realm.

It could be an alternate version of Dumbledore. Maybe in this universe, Dumbledore has been corrupted by power and his thirst for knowledge leads him to do dark things. He could be trying to control the entire wizarding world using some powerful and forbidden magic.

Perhaps Bellatrix Lestrange had a secret accomplice who was also interested in the Potter family. After Bellatrix's death, this accomplice decides to hunt down the missing sister to finish what Bellatrix started - destroying the Potter family once and for all.

It could also be a dark wizard from the past who has been trapped in a hidden part of Hogwarts and is now released during Harry's third year. This wizard could have a vendetta against the Potter family or Gryffindor house and start causing trouble.

It could be a rogue wizard who was once a student at Hogwarts and has a vendetta against the school. He was expelled for practicing dark magic and now he's back to cause trouble. Maybe he wants to steal some powerful magical artifacts from the school's vaults.

A powerful dementor - like being that has been corrupted by Asgardian dark magic. This entity could be draining the life force of both wizards and Asgardians. It would be up to Thor and Harry Potter to find a way to stop it, as it poses a threat to both of their worlds.