Rogue Shadow was the space transport that Darth Vader's apprentice traveled in. It shared design elements with many other Imperial craft, including the Eta-2 interceptor and the starfighters of the TIE series. The ship was piloted by Juno Eclipse.
The Rouge Shadow had an onboard meditation chamber which also serves as a training room, with a protocol droid designed to test the Secret Apprentice in many ways, including by attempting to kill him in training. The training room was created on Darth Vader's request, and the Secret Apprentice mostly used it to learn and practice new skills.