Well, often it's about preventing key deaths. For example, in some fanfics, they use time travel to stop Heimdall from being killed. This changes the course of events significantly for Thor. Also, the idea of going back to Thor's earlier days and having him gain more knowledge or power is popular. Say, Thor could go back and train more effectively with Odin, which would make him stronger and more capable when facing future threats. This way, he can then come back to the present (or the 'original' timeline) and fix things more easily.
One common plot device is using the Time Stone. In Thor - related time travel fix - it fanfiction, the Time Stone can be used to reverse certain events that led to bad outcomes for Thor, like the destruction of Asgard. Another is the use of alternate timelines. Writers might create a timeline where Thor makes different choices, such as not going for the power - up in Ragnarok that left Asgard vulnerable, and then figure out a way to merge this better timeline with the main one. And sometimes, they use a character's special time - traveling abilities, like Loki's tricks with time, to fix things that went wrong for Thor.
Often in these fanfictions, a plot device is the existence of an alternate dimension. The Avengers could find a way to access this dimension where things didn't go wrong and bring back the good elements from there to fix their own world. Additionally, a Deus ex Machina - like event, such as a sudden, unexplained cosmic force that restores everything to normal, is sometimes used. However, this can be a less satisfying device as it doesn't really involve the characters' efforts as much. Another plot device is the power of teamwork being magnified to an extreme degree. The Avengers, by working together in a more perfect way than in the original story, are able to fix all the problems.
One common plot device is the alteration of major events in the Naruto timeline. For example, a time - traveling Naruto might prevent the Uchiha massacre, which would have huge ramifications for the entire shinobi world. Another is the transfer of knowledge from the future. The time - traveling character could introduce new jutsu or battle strategies that hadn't been thought of in the past. Also, there's often the theme of self - discovery as the character sees their past self or predecessors and gains a new understanding of their own path and purpose.
In these fanfictions, the discovery of lost knowledge or power in the past is a popular plot device. Ragna might travel back to a time when a powerful artifact was created or a forgotten magic was known. By obtaining this knowledge or power, he can gain an edge in his fight against his enemies in his own time. Additionally, time travel can be used to explore Ragna's backstory more deeply, revealing things about his past that were previously unknown.
One common plot device is the accidental time travel. For example, a mage could be casting a spell and something goes wrong, sending them back in time. Another is the use of ancient artifacts. These artifacts might have the power to open portals to different time periods. Also, prophecies often play a role. A character might be sent back in time to fulfill a prophecy that will save Azeroth in the future. This can create a lot of interesting storylines as the character has to navigate a world that is both familiar and very different from their own time.
One common plot device is the use of a special device for time travel, like a time machine or a magical portal. For example, in many fanfictions, a character might find an old, mysterious watch that turns out to be a time - traveling device. Another plot device is the 'fish - out - of - water' scenario. When a character travels to the future, they are often shocked by the new technology, different social norms, and strange environments. They have to adapt quickly, which creates interesting storylines. Also, the idea of changing the future is a big one. The character might go to the future and see something terrible, so they try to go back and change the present to prevent it from happening.
One common plot device is changing the past to prevent a tragic event in Damon's life. For example, he might go back to save a loved one from being killed. Another is getting stuck in a different time period and having to adapt, like in a historical era where he has to deal with different social norms and powers. Also, there could be the classic 'butterfly effect' where small changes he makes in the past lead to huge, unexpected consequences in the present or future of the story's timeline.
One common plot device is using a magical object to trigger the time travel. For example, a strange old watch that suddenly starts glowing and transports the character back in time. Another is when a character has a near - death experience and wakes up in a different time period related to The Outsiders' world. It could also be a mysterious portal that appears out of nowhere.
Well, time - travel glitches can be a plot device. For instance, a character might end up in the wrong time period due to a malfunction in the time - travel mechanism. Another one could be the influence of a powerful alien race. They might use time travel to manipulate events in the Gundam universe, and our protagonist has to stop them. Also, the idea of time - traveling to save a loved one who died in the original timeline is quite common. The character goes back in time with the hope of changing the outcome and preventing that loss.
Time travel can make Thor more self - aware. When he travels through time, he sees his past mistakes more clearly. For example, if he goes back to his brash and arrogant days, he realizes how his actions led to problems later. This makes him more humble.
One common plot device is Optimus Prime traveling back in time to prevent a major disaster in the Transformers' history. For example, he might go back to stop the Decepticons from obtaining a powerful weapon before it was ever created. Another is traveling to the future to see the consequences of current actions and then coming back to change the present. This allows for a lot of interesting character development as he has to deal with the knowledge of what could be.