Time travel can give the DADA teacher a chance to change things. They could try to prevent certain dark events from happening in the past. But this also comes with risks. If they change too much, they might disrupt the entire timeline. In some fanfics, the teacher has to be really careful about what they do and say to not cause chaos in the wizarding world's history.
One great fanfiction in this genre is 'The Time - Twisted DADA Teacher'. It has an interesting plot where the DADA teacher from a future time travels back to Hogwarts during Harry's time. The character development is well - done and it weaves in elements from the original series in a creative way.
Well, in many Harry Potter fanfictions with time travel, it can completely change the plot. For example, if a character goes back in time and warns Harry about certain events before they happen. It might prevent some tragedies or create new situations. Maybe they could stop Cedric's death by changing the events in the Triwizard Tournament. This adds a whole new layer of complexity and excitement to the story.
It can make the storyline more complex and full of possibilities. When Harry time - travels, he might accidentally create a time paradox. This means that his actions in the past could have unforeseen consequences in the present. For instance, if he saves someone who was supposed to die, it could change the entire course of the war against Voldemort. Sometimes, time travel allows for characters to gain new powers or knowledge from the past, which they then use to change the future for the better or worse.
Time travel can completely reshape the canon storyline. For instance, if Harry goes back and saves Sirius, it changes the emotional state of Harry in later years. He would have a strong mentor figure by his side, which could lead to him being more confident and making different decisions. Also, if he stops Voldemort's Horcrux creation, the entire battle against Voldemort would be very different. There might not be a need for a long - drawn - out war, and many lives could be saved.
Well, if Harry travels back in time, it might strengthen his relationship with Cedric. For example, he could warn Cedric about the danger in the maze earlier, and Cedric would be more trusting of Harry. This would create a deeper bond between them as they work together to face the challenges.
Time travel for Harry could be a way to confront his past traumas. He might go back to a time when his parents were alive and get some closure. This could make him more at peace with himself and less haunted by his past. As for Tonks, time travel could expose her to different forms of magic and different social structures. If she travels to a time when pure - blood - supremacist ideas were more prevalent, she could become more of an advocate for equality. She might also see how her family has evolved over time, which could give her a stronger sense of identity and purpose.
In some fanfics, time travel can strengthen their relationship. For example, if they travel back in time and face difficult situations together, they rely on each other more. This shared experience can make their bond deeper.
Harry's time travel might change the Marauders' fates completely. They could form a stronger alliance against Voldemort with Harry's help. Maybe they would be able to discover more about Voldemort's secrets earlier. And their relationships would also be different. Sirius and Remus would not have to suffer the loss of their friends in the same way.
Another challenge for Harry as Dada teacher could be dealing with the school's bureaucracy. He might want to introduce new teaching methods or change the curriculum, but he has to go through the proper channels. And there could be resistance from some of the more conservative teachers or the school administration who are used to the old ways of teaching Dada.
Well, in this fanfiction, Harry might use his own experiences with dark magic to teach in a very practical way. For example, he could share how he faced Voldemort and his Death Eaters and turn those real - life situations into lessons on defensive magic. He might also introduce some new spells that he has learned or developed during his adventures.