In the fanfiction, if Harry kills the Joker, it could lead to a change in Harry himself. Killing is not something he takes lightly in his own world. He might struggle with guilt and the moral implications of his actions. Additionally, it could have a ripple effect on the magical world he comes from. News of his actions in a non - magical but equally dangerous world could change how the magical community views him. There could be those who praise him for his bravery in a strange new place and others who condemn him for taking a life.
If Harry Potter kills the Joker, the public in the Joker's world might have a mixed reaction. Some might see Harry as a hero for getting rid of such a dangerous and chaotic figure. However, others might fear Harry's power and magic, which they don't understand. Also, the law enforcement in that world might have to deal with a new situation where a magical being has killed a well - known criminal. They might not know how to handle Harry, whether to arrest him or let him go as a hero.
One consequence could be that the Joker's followers would be out for revenge. They might target Harry Potter or his friends if they also exist in that fanfiction world. Another consequence could be that the balance of power in the Joker's world is completely disrupted. There could be a power vacuum that other villains or even some anti - heroes might try to fill.
Well, in a fanfiction world, anything can be possible. Maybe Harry Potter uses his magic skills like the Killing Curse. But it's really a strange crossover. The Joker is from a completely different universe with no magic, and Harry Potter is from a world full of magic. It would be a very unique and perhaps disturbing story to see how Harry Potter overcomes the Joker's chaos and madness with his magic and finally kills him.
He might gain more respect from his peers. After all, killing the Basilisk is no small feat. His friends would probably look up to him even more, and his reputation in Hogwarts could soar. He could also become a bit of a legend among the younger students.
The wizarding world would likely be in a state of shock and then celebration. People would start to see Azkaban in a new light, perhaps no longer as just a place of horror but also as the site where the great evil was finally vanquished.
The Harry Potter universe might see an influx of new magical knowledge from the Star Wars galaxy. Since Harry has interacted with it, there could be new spells or magical concepts brought back. In the Star Wars universe, without Palpatine, Luke Skywalker and the other Jedi might not have to face as many challenges. However, the dark side would still be present, and new threats could emerge. And the relationship between the two universes could become a major point of study and diplomacy for both sides.
It would be really strange. Harry Potter is from a magical world of wizards and witches, while the Joker is a chaotic and often dark character from the Batman universe. Maybe in this fanfiction, Harry could have the Joker's unpredictable nature and use his magic in really devious ways.
There could be some negative consequences too. Maybe the dragon had some kind of magical protection or was under the care of a powerful wizard or creature. Harry might then face the wrath of those who were protecting the dragon, leading to him having to go into hiding or facing dangerous challenges. Also, the act of killing a dragon, even in self - defense, might make some more sensitive wizards view him in a different, less favorable light.
It could lead to a major shift in the power balance in the wizarding world. Without Hermione's intelligence and strategic thinking, the good side might struggle more against any potential threats. Also, Ginny would probably be deeply affected, as she is close to Harry and Hermione. She might be torn between her loyalty to Harry and her horror at what he has done.
In the fanfiction, there could be a range of consequences. On one hand, he could be seen as a hero by his fellow students. They might admire his bravery and his ability to take on a dangerous troll. However, the teachers may be more cautious. If Harry used excessive force or magic that was not in line with the school's code of conduct, he could be given detention or even face a disciplinary hearing. Also, depending on how the troll was killed, there could be some magical fallout. For example, if he used a very dark spell, it could have an effect on his own magical core or his relationship with magic in general. Moreover, the death of the troll might also attract the attention of other dark creatures or forces that were somehow related to the troll, putting Harry in further danger.
One consequence could be that he becomes a hero among his peers. Everyone in Hogwarts might look up to him even more. The other students could see him as a real dragon - slayer, which gives him more popularity and respect.
If Harry Potter becomes the Joker in fanfiction, he would probably start to question all the values he once held. The Joker is all about subverting order, so Harry might begin to undermine the Ministry of Magic and other institutions. He could use his knowledge of magic to play cruel pranks on people, not the innocent kind of pranks he used to do. His Gryffindor courage could be twisted into a reckless disregard for the safety of others.