A common plot twist is when the time traveler accidentally changes something they didn't intend to. For example, in some fanfictions, Harry might go back to save Sirius but ends up changing the relationship between Lupin and Tonks in an unexpected way.
Some fanfictions have a plot twist where the time traveler discovers that the future they thought was wrong was actually part of a bigger plan. So when they go back to 'fix' things, they end up making it worse at first. For instance, they might try to stop Voldemort's rise but find out that his rise was necessary to prevent an even greater evil in the long run. This forces the characters to re - evaluate their actions and motives.
Another popular plot twist is when the time - travel device or spell has its own limitations or secrets. In one fanfic I read, the time - travel spell was actually a trap set by an old dark wizard, and the characters had to figure out how to break free from it while still trying to fix things. This added a whole new layer of danger and mystery to the story. It made the characters not only deal with the problems they were trying to fix in the past but also with this new threat.
One popular plot twist could be Loki going back in time and preventing his own fall from grace in Asgard. This would completely change the course of his story and his relationship with Thor and Odin. Another might be Loki using time travel to stop the events that led to Ragnarok, saving Asgard in a different way than was originally shown.
In some fanfictions, like 'The Unforeseen Consequences of Time Travel', a plot twist could be that when Harry and Hermione go back in time to save someone, they end up causing more harm than good. This completely flips the expected outcome on its head and makes for a very engaging read.
In some fanfictions, a big plot twist is that Jacob turns out to be related to one of the major wizarding families in the Harry Potter universe. This completely changes his status and the way other characters interact with him. It adds a whole new layer of drama and mystery to the story.
In some fanfics, a time - traveler might end up being the cause of Grindelwald's rise instead of stopping it. For example, in 'The Unintended Consequence', the main character's actions in the past accidentally give Grindelwald more power.
A very well - known fanfic in this category is 'Evil Dumbledore: Time Travel Revelations'. This story is popular mainly because it delves deep into the concept of how an evil Dumbledore could have influenced the entire course of the Harry Potter story through time - travel - related events. It also has some great side characters and sub - plots that add to the overall richness of the story.
One common plot twist is when a character travels back in time and accidentally changes a major event that was crucial for the future. For example, they might prevent a key battle from happening, which then has a ripple effect on all the relationships and power dynamics in the Bleach universe. Another twist could be that the time traveler discovers they are the cause of a future problem they were trying to prevent all along. It's like a self - fulfilling prophecy in reverse.
Perhaps Harry Potter travels back in time and ends up befriending a younger Bellatrix. He could try to influence her to not become a Death Eater. This would create a really complex situation because he has to balance not changing too much of the future while also trying to save her from the dark path. It could lead to some really intense moments where Harry has to hide his true identity and motives from her.
A common plot twist is that the goblin banker is actually a spy for an underground magical resistance. He has been using his position in Gringotts to gather information. Harry Potter discovers this by accident and has to decide whether to trust him or turn him in. This adds a lot of suspense and moral dilemma to the story.
Well, when it comes to different house Harry Potter fanfiction, the plot twists are diverse. In Gryffindor fanfic, a cool plot twist could be that a Gryffindor who was always seen as a hero makes a huge mistake that they have to atone for. This shows that even the bravest can err. For Slytherin, a plot twist might be that a Slytherin forms an alliance with a group that they were initially opposed to, for a strategic reason that surprises everyone. In Hufflepuff fanfic, a plot twist could be that a Hufflepuff discovers a hidden power within themself that they use to save the day. And in Ravenclaw fanfic, a plot twist can be that a Ravenclaw's intellectual curiosity gets them into a situation where they have to use their wits in a completely new way to get out.
One popular plot twist could be Ichigo bringing his Soul Reaper powers into the Harry Potter world. For example, he might use his Zanpakuto to fight the dark wizards in a way that surprises everyone. Another could be Ichigo having an unexpected connection to the Deathly Hallows. Maybe his spiritual energy somehow interacts with the Hallows in a unique way. Also, a great plot twist could be Ichigo being sorted into an unexpected Hogwarts house, like Slytherin, and then having to deal with the prejudices and challenges that come with it, while still being true to his own heroic nature.