When Harry has the power of teleportation in fanfic, the whole concept of travel and rescue missions is transformed. He can instantly transport himself and others out of dangerous situations. This power can also lead to new adventures as he can explore far - off places without the need for traditional means of transportation, thus opening up new storylines.
Powers can also be used to solve problems in the plot. A character with the power of flight might be able to reach a hidden location or rescue someone from a high - up place. Their power enables them to overcome obstacles that would otherwise be insurmountable. Moreover, powers can change relationships. If one character has a power that another needs, they may form an alliance. This can shift the power dynamics within the story and influence the overall direction of the plot.
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.
The powers might also change the way magic is perceived in the story. If Harry can do things like read minds or foresee events, it could make other forms of magic seem less powerful in comparison. Or it could inspire other characters to explore different, more psychic - related magic, thus expanding the magical lore in the fanfiction.
Super powers in fanfic can greatly change the original story. If a character has the power of instant healing, for example, many of the life - threatening situations in the original story would be easily resolved. This could change the relationships between characters as well. If Harry had a super power that made him invincible, Voldemort would have a much harder time trying to kill him, and the whole dynamic of their struggle would be different.
Familiars in fanfic can affect the plot in many ways. For instance, they can be used as a means of communication. If a wizard is in a dangerous situation and can't use magic openly, their familiar can carry messages to other wizards. They can also act as a plot device to introduce new magical elements. Say a familiar discovers a hidden magical artifact, that then becomes the focus of the story.
Monsters can be a major plot device in Harry Potter fanfic. They can change the relationships between characters. For example, if a monster attacks a group of students, it can make them bond together more tightly as they fight for survival. Or, if a character has a special connection to a monster, like being able to communicate with it, this can lead to a whole new sub - plot. The monster might hold a key to a mystery, like the location of a powerful magical object, and the characters' quest to get that information from the monster becomes a central part of the plot.
In fanfic, Harry Potter might have enhanced occlumency powers. He could be able to completely shield his mind from Voldemort and other dark wizards without much effort. This would give him an edge in battles as his thoughts would be completely private.
They can drive the plot forward. If a character takes an oath to find a powerful magical artifact, then the whole story can revolve around that quest. It gives a clear goal and motivation.
They can add drama. For example, if a character suddenly discovers they are a 'Lord', it can create a power struggle within the story. Others may be jealous or try to use the newly titled character for their own gain.
They can introduce conflict. For example, if the 'creature of the night' is a powerful vampire clan that decides to take over Hogwarts, the main characters will have to find a way to defend the school. This creates a lot of action and suspense in the plot.