There could be a fanfic where an ancient Dark Side artifact is discovered near the Ghost. The crew decides to study it, not realizing the danger. As they do, the Dark Side energy starts to affect the ship itself. Systems malfunction, and strange things start to happen. Kanan, with his Jedi knowledge, tries to figure out how to neutralize the artifact and save the Ghost from being consumed by the Dark Side.
The 'Lego Star Wars Rebels Ghost Story' likely involves the Rebels characters in some sort of adventure related to a ghost or a spooky element. Maybe they encounter a haunted place or a spectral enemy. However, without more specific information, it's hard to say exactly what the plot is.
In 'Lego Star Wars Rebels Ghost Story', I would expect characters like Kanan Jarrus to be there. He's Ezra's mentor, a Jedi Knight. Also, Hera Syndulla, the Twi'lek pilot who leads the Rebels in their ship, the Ghost. Sabine Wren, the Mandalorian explosives expert and artist, is also likely to be a main character as she is an important part of the Rebels' team.
Well, it follows the story by being set in the same universe. It features similar themes like the fight between the Rebellion and the Empire. It also has elements such as the Force, lightsabers, and iconic starships that are all part of the broader Star Wars story.
One great Star Wars Rebels Rex fanfiction is 'Rex's Redemption'. It shows Rex finding his place in the Rebellion after his Clone Wars experiences. Another is 'Rex and Ezra's Bond', which focuses on the relationship between Rex and Ezra Bridger. There's also 'Rex's Leadership in the Rebels' that details how Rex uses his military knowledge to help the Rebels.
One way is through flashbacks. Maybe Kanan or Hera have heard stories from older Jedi about Yoda. These stories could then be shown in flashbacks and influence their actions in the present. Also, Yoda's teachings could be passed down through Jedi texts that the Rebels find. This would be a more indirect but still realistic way of incorporating him into the story. And his connection to the Force could be felt by Force - sensitive Rebels in times of great need, guiding them without actually appearing physically.
Sabezra fanfiction adds a lot to the fandom. It allows fans to explore the relationship between Sabine and Ezra in ways that the show might not have fully. For example, it can give more in - depth looks at their feelings for each other.
A great way to incorporate the Dark Side is through a cursed object on the Ghost. Maybe a Sith relic was brought on board by accident. This relic starts to drain the life force of the crew and makes them more aggressive and short - tempered. The crew has to figure out where the object came from and how to get rid of it before they are completely consumed by the Dark Side.
One interesting concept is exploring the backstories of minor characters. For example, in some fanfictions, they might delve into the past of a random stormtrooper, showing how they ended up in the Empire. Another concept could be alternate endings to major events in the series. It gives fans a chance to rewrite parts they thought could have been better.