Dark creatures can be the main source of conflict. For example, if a Dementor plague is introduced in a fanfic, it can drive the characters to find a solution, like a new spell or artifact to repel them. They can also be used to create moral dilemmas. If a character is bitten by a werewolf, how the wizarding community treats that person can be a big part of the plot.
Often, dark creatures in fanfiction can be the catalyst for alliances. If a new and powerful dark creature emerges, different factions in the wizarding world might have to team up, whether it's Hogwarts students and teachers, or different wizarding families. This creates new dynamics and storylines as they work together or clash while trying to deal with the threat.
Werewolves are also a popular dark creature in fanfiction. Writers may explore their relationships with other characters in more depth, like how they interact with Hogwarts students. For example, a werewolf character could be a misunderstood outcast trying to find his place.
One possible plot could be that Harry discovers a misunderstood dark creature, like a werewolf cub that has been separated from its pack. He decides to befriend it and protect it from those who would harm it just because of what it is. As he befriends the cub, he learns about its unique abilities and how it views the wizarding world.
In fanfiction, dark creatures can be more sympathetic. For instance, a vampire might be shown as a victim of his own condition rather than just a menacing figure. This gives readers a new perspective on these usually feared beings.
Dark gifts can isolate characters. If a character has a dark gift like being able to see the future of dark events, others might be afraid of them or think they are cursed. For example, they could be shunned by their peers at Hogwarts.
The Acromantula. Harry could come across a young Acromantula that is different from the rest of its kind. Instead of being aggressive, it shows an interest in learning about the human world. Harry, being the kind - hearted person he is, decides to befriend it. He might even teach it some basic spells or communicate with it using Parseltongue.
Rituals can also be a way to explore different magical cultures in fanfiction. For example, if a ritual from an ancient wizarding tribe is introduced, it can bring in new lore and magic. This can expand the world - building of the Harry Potter universe in the fanfiction. If the main character has to learn and perform this ritual to save the day, it not only affects the immediate plot but also enriches the overall story by adding depth to the magical world and its history. It can also lead to the discovery of long - lost magical artifacts or secrets that were tied to that ritual, which can further drive the plot forward.
New powers can completely change the direction of the plot. For instance, if a character has the power of instant teleportation across any distance, it can disrupt the usual modes of travel and conflict in the Harry Potter universe. It might make it easier to escape from danger or reach a place in time to prevent a disaster. This could also lead to new conflicts, as other characters might be jealous or afraid of this power.
If a fanfiction features a super - powerful wand, it can completely change the power balance in the story. For example, if the protagonist gets a wand that can break any protective spell easily, they can access places that were previously inaccessible. This can lead to a different kind of adventure, like exploring ancient, forbidden magical tombs.
Rare abilities often act as a catalyst in the plot of Harry Potter fanfiction. Let's say a character has the ability to travel through time freely. This ability can disrupt the normal flow of events. They might accidentally change something in the past that has a huge impact on the present and future. It could lead to a situation where the main characters have to find a way to fix the timeline. Or if a character has the rare ability to control the minds of all magical creatures, they could use this power to either start a revolution among the creatures or to create an army, which would completely change the political and social structure of the wizarding world and thus drive the plot forward.
Predator abilities can also drive character development. For example, if a main character is the target of a predator with the ability to sense fear, they may have to learn to control their emotions. This forces them to grow and become stronger in ways that they wouldn't have otherwise. It adds depth to their character arc.