There could be unforeseen magical consequences. Fiendfire is a very wild and unpredictable magic. Even if Harry can control it, it might still have some negative impacts on the surrounding magic or the environment. For example, it could disrupt the natural balance of magic in a certain area, causing other magical elements to behave erratically. And perhaps it could also have an effect on Harry's own magical core over time, as constantly using and controlling such a powerful and dangerous magic might take a toll on his internal magical energy.
One consequence could be that it changes the power dynamics in the wizarding world. If Harry can control Fiendfire, he becomes an even more powerful wizard, which might make some people fear or envy him.
It could also have consequences for his relationships. His friends might be worried about him using such a dangerous form of magic. On the other hand, his enemies would be more cautious around him. For instance, the Death Eaters would think twice before attacking him if they knew he could control Fiendfire. Also, it might attract the attention of other powerful wizards or magical creatures who are interested in this power.
In some fanfictions, it could be through intense magical training and study. Maybe he discovers an ancient spell or a hidden magical technique that allows him to assert control over the dangerous Fiendfire.
One consequence could be that he is feared by others. Fiendfyre is a very dangerous and dark magic, so if Harry is seen controlling it, some people in the wizarding world might view him with suspicion and fear, thinking he is turning to the dark side. Another consequence might be that it drains his magical energy a great deal. Controlling such a powerful and volatile spell could take a toll on his magical reserves, leaving him weakened after using it.
One consequence could be a change in the school's power structure. If Harry controls Hogwarts, the old hierarchies might be challenged. For example, the influence of some traditionalist teachers could decrease. Another consequence might be a shift in the curriculum. Harry may introduce more practical and combat - related magic lessons, given his own experiences.
There could be a power struggle within the wizarding world. Some pure - blood families who have long held influence in the Wizengamot might oppose Harry's control. This could lead to internal conflicts, maybe even a split in the wizarding community between those who support Harry and those who don't.
In some Harry Potter fanfiction, the idea of controlling electricity could be really interesting. For example, a character might use magic to manipulate electrical currents in a Muggle device. This could be used for various purposes like creating a new form of magical - Muggle hybrid technology within the wizarding world. Maybe a young wizard discovers they can control electricity as an extension of their magic, and it becomes a crucial part of their adventures, helping them solve mysteries or defeat dark forces.
One consequence could be that his friends start to fear and distrust him. After all, controlling people goes against the principles they uphold. They might see him as a threat and try to stop him, which could lead to a lot of conflict among them.
One consequence could be that his friends start to fear or distrust him. After all, mind control is a very invasive power. They might worry that he could use it against them at any time.
In fanfiction, if Harry controls the Hogwarts wards, it might also change the power dynamics within the school. Teachers and students would have to adjust to this new authority. He could potentially use the wards to create safer areas for students to practice magic without fear of being attacked. This could lead to a more confident and magically proficient student body.
The consequences of inappropriate Harry Potter fanfiction are not to be underestimated. It can alienate a large portion of the fan community. Many fans view the Harry Potter series as something that has positive values like friendship, courage, and love. Inappropriate fanfiction can distort these values. Moreover, in a community that has a significant number of young fans, it can be a form of bad influence. It can also lead to internal conflicts within the fandom, with some fans supporting the creation of all kinds of fanfiction while others believing that inappropriate content should not be associated with the beloved Harry Potter series.
For fans, it means a loss of creative outlet. Many fans enjoy writing fanfiction as a way to explore the 'Harry Potter' world further, so they are disappointed. For example, a fan who had an interesting idea about a side story for Hagrid can no longer share it in the form of fanfiction.