Darth Phobos as a hologram, dueling Galen Marek during his mission to the Jedi Temple
In the year 3 BBY, the Sith Lord Darth Vader sent his secret apprentice Galen Marek, code-named Starkiller, to the Jedi Temple on Coruscant to face the Trial of Insight. After fighting through the Imperial garrison located at the temple, he dueled a holographic manifestation of Phobos wielding her double-bladed lightsaber. Despite catching him off guard by disguising herself as Juno Eclipse before brandishing the blade, she was ultimately defeated by the Sith Acolyte. By 1 ABY, the technical readout of the lightsaber that Phobos had used during her life came into possession of the Alliance to Restore the Republic. Alliance Staff Sergeant Levardio, stationed on the Zephyr Base on Rori, the moon of the planet Naboo, offered the readout for sale to Rebels who performed valiantly on the battlefields of the Galactic Civil War, allowing the buyer to create their own replica of Phobos' lightsaber after acquiring all the necessary resources.
- The Complete Star Wars Encyclopedia