In a fanfiction plot, Starkiller could travel to different time periods to collect powerful artifacts. Each time period has its own challenges and enemies. As he travels through time, he starts to understand the true nature of the Force and how it has been manipulated throughout history.
One great 'Dark Starkiller Time Travel' fanfiction is 'Starkiller's Time - Warped Adventure'. It takes Starkiller on a journey through different eras of the Star Wars universe. He has to face his past self and deal with the consequences of changing small events in time. The story is full of action and interesting character interactions.
In the era of the Old Republic, Starkiller's abilities would be quite different. The Force was more in tune with the natural order then. His raw power might be more subdued as he would have to adapt to the more traditional ways of the Jedi and Sith. For example, his lightsaber combat might become more refined in the style of the ancient Jedi, rather than his more aggressive style from his own time.
One idea could be that the Vault Hunters accidentally stumble upon an ancient alien device that sends them back in time. They then have to navigate the past Borderlands, which may have different versions of their enemies or allies. They could also meet the ancestors of the characters they know and change the course of history in unexpected ways.
The idea of Dark Starkiller time travel is appealing because it allows for a lot of creativity. It combines the already interesting character of Starkiller with the concept of time travel, which opens up countless possibilities. For example, he could go back and change the fate of his loved ones or prevent certain dark events from occurring in the Star Wars universe.
One idea could be that Khal Drogo travels to the future and is amazed by modern technology. He might see skyscrapers and cars and think they are strange magic. He could try to adapt to this new world while still holding onto his warrior ways.
Maybe they time - travel to a time when a great war was about to start. Sakura, with her medical skills, and Sai, with his strategic thinking from being an Anbu, could work together to prevent the war. They could try to change the minds of the leaders involved by showing them the future consequences of the war. This would involve a lot of sneaking around and trying not to be discovered as time - travelers.
One idea could be that Phoenix Wright travels back in time to his law school days. He uses his future knowledge of the law and courtroom tactics to ace his exams and gain early notoriety. This would change the way his early career unfolds and potentially make him an even more formidable lawyer earlier on.
One idea could be that they travel back to the time when the Targaryen dynasty was at its peak. Jon could see Daenerys in her element as a Targaryen princess. They might try to change some of the events that led to the downfall of the Targaryens, like preventing the Mad King's actions. But this could have unforeseen consequences for the future they came from.
Another plot could involve Elizabeth Swann time - traveling. She gets sent to a future version of the Caribbean where piracy has been completely eradicated. However, she discovers that without pirates, the balance of power in the region has been thrown off and there are new tyrannical forces at play. So, she has to find a way to bring back the spirit of piracy in a more civilized way to restore the balance. She uses her knowledge from the past and her wits to start a revolution of sorts.
One idea could be Logan travels back in time to prevent a major event that led to the downfall of his kind. He could use his knowledge and skills to change key decisions, creating a whole new timeline full of different challenges and relationships.