A story could start with Starkiller being on a mission for the Empire and Ahsoka getting wind of it. She decides to stop him. Their paths cross on a desolate planet, and there's an immediate tension as they size each other up, not knowing fully what the other is capable of.
In an alternate universe, Starkiller and Ahsoka could be comrades. They might team up to fight against a greater threat in the galaxy. Maybe they meet during a mission where they initially have their doubts about each other but gradually learn to trust and rely on one another.
Starkiller is the central character in this story. He's likely to be a character with unique abilities and a significant role in the Star Wars universe.
Starkiller can be a game - changer in Star Wars crossover fanfiction. He can bring his combat skills and Force knowledge to new settings. For example, if he's in a crossover with the Matrix universe, his ability to sense and manipulate the Force could be compared to Neo's ability to control the Matrix.
A more detailed fanfiction could involve Starkiller being lost in time and ending up in Ahsoka's era. At first, they are suspicious of each other, but as they learn about the common threats they face, they start to trust and rely on one another. They could exchange knowledge about the Force, with Starkiller showing Ahsoka some of the unique combat techniques he learned from Vader, and Ahsoka teaching him about the more traditional Jedi ways. This would lead to a deepening of their characters and a great story arc as they work together to protect the galaxy from a looming danger that neither could face alone.
A fanfiction could also explore the idea of Starkiller and Ahsoka meeting in a post - Empire world. Starkiller, having broken free from his Sith past, and Ahsoka, who has seen so much of the galaxy's turmoil, could join forces to help rebuild and protect the newly - emerging peaceful systems. They would have to overcome their differences, as Starkiller has a more aggressive style while Ahsoka is more in tune with the Jedi's peaceful ways. But their shared goal of a better galaxy could bring them together. They could start by training a new generation of Force - sensitive beings, combining their unique teachings to create a more balanced approach to the Force.
Well, the theme of identity is quite common. Starkiller has a complex backstory and his true identity is often explored in fanfiction. Is he just a weapon, as the Sith intended, or can he become something more? Also, the theme of relationships is prevalent. Fanfictions look at his relationships with other characters like Juno Eclipse, Darth Vader, and other Jedi or Sith. For example, how his relationship with Juno might change his path or how his interactions with Vader shape his understanding of the Force.
He's often portrayed as a powerful and mysterious figure. Writers in fanfiction may show him using his Force abilities in creative ways that we don't see in the main Star Wars canon related to Star Wars Rebels. He could be a force for good, despite his past, and his presence might inspire the Rebels to take bolder actions against the Empire.
Well, Starkiller in Star Wars Rebels fanfiction can be seen as a sort of wildcard. His presence can completely shift the plot. He might be depicted as a mentor figure to some of the younger Rebels, teaching them about the Force in a different way than Jedi like Kanan. Fanfic writers like to play with his dark past and how he can either overcome it or be tempted back to the dark side within the context of the Rebels' fight for freedom.
One interesting aspect of Starkiller in Star Wars crossover fanfiction is the potential for him to interact with characters from other universes. For example, he could meet characters from the Star Trek universe. This would create a really cool dynamic as his Force - using abilities would contrast with the more technological - based powers in Star Trek.