Well, it could be that Jack of Blades is seen as a new kind of dark threat. In the fanfiction, his powers might be something that the wizarding world has never encountered before. So, it adds a new layer of danger.
In some fanfictions, Jack of Blades could be a mysterious figure from a far - off land that has some connection to the dark arts in the Harry Potter world. For example, perhaps his power source is related to some ancient and forgotten magic that Voldemort was also interested in. This could create a really complex and engaging plot where characters from both 'worlds' are vying for control over this powerful magic. The fanfiction writers can play with the idea of how the Hogwarts students or other wizarding characters would react to such an unknown and powerful entity like Jack of Blades. They might be both curious and afraid, and this could lead to a lot of interesting character development and interactions.
Well, in fanfiction, a succubus can fit into the Harry Potter universe as an otherworldly being. It could be from a different magical realm and end up in Hogwarts. For instance, it might be attracted by the powerful magic there.
Well, in fanfiction, the changling can add an element of mystery. It can be seen as a creature that blurs the lines between the known magical beings in the Harry Potter world. For example, it could be a being that can shift forms like a Metamorphmagus but with different rules and limitations.
In fanfiction, the Dragonborn can fit into the Harry Potter universe in various ways. They could be a new student at Hogwarts with their dragon - like abilities being a big secret. Or they might be a mysterious figure from another dimension who comes to help in the fight against Voldemort. For instance, their ability to resist fire could be useful in battles against fire - breathing dragons in the Forbidden Forest.
The Tesseract in Harry Potter fanfiction can be seen as a link between different dimensions in the wizarding world. It could be the key to unlocking secrets about the origin of magic. For example, it might be that the founders of Hogwarts knew about the Tesseract and used its power to build certain parts of the school. Or, it could be that the Tesseract has the ability to break the boundaries between the Muggle world and the wizarding world, creating a whole new set of challenges and adventures for the characters.
In Harry Potter fanfiction, the concept of concubine can be a way to explore different cultural or historical aspects within the wizarding world. It could be used to show a more complex social structure.
The Sharingan can fit by enhancing a character's perception. In fanfiction, it could make a wizard like Harry more aware of his surroundings during duels. He could see the flow of magic more clearly, similar to how in the Naruto universe, Sharingan users can see chakra.
The Blades of Chaos could be part of a hidden magical heritage within the wizarding world. It could be that Harry has a distant ancestor who was involved with creating or using the blades. When he discovers this connection, he starts to explore the power of the blades. They might give him an edge in battles, not just physical ones but also in magical duels. For instance, they could disrupt the dark magic spells of his opponents. However, using the blades also comes with risks, as they might attract unwanted attention from dark wizards who want to possess them for their own evil purposes.
In fanfiction, the Dying Will Flames could be seen as a way to expand on the idea of magic in the Harry Potter universe. It could be a power that is tied to a character's willpower and determination. So, when a character is facing great danger or has a strong desire to achieve something, the Dying Will Flames could emerge. This would add a new layer of depth to the characters, as they would not only rely on their normal magical abilities but also on this new, more instinctual power.
The 'God Hand' can fit into the 'Harry Potter' universe in fanfiction by being a powerful and mysterious element. It could be a new form of magic that disrupts the existing balance. For instance, it might be a tool that can break through powerful spells like the Unbreakable Vow.
The shadow werewolf can add an element of mystery. It could be a type of werewolf that is more elusive and has different powers compared to the regular werewolves in the Harry Potter series. Maybe it can blend into the shadows, making it a great spy or assassin in the dark world of wizarding politics.