The Skyriver Invader was a starship used by the genetic decoy of Zeta Magnus during his stint as Magister of Skye in 22 BBY. A strange, triangular craft, it reminded the Jedi Halagad Ventor of a T-11 model he used to play with as a youngling. Zeta Magnus named the ship after the main galaxy used by the Nagai, an extragalactic species who he encountered in the Unknown Regions and acquired cloaking technology from. The clone of Zeta Magnus held his ship in the hangar bay of his mountaintop fortress on the planet Skye. When Magnus tried to escape the planet after a group of three Jedi foiled his plans, Padawan Ventor stopped the mutant by impaling him with a liquid cable spike. While the mutant attempted to eat the padawan, he was betrayed by his droid Blue-Tark who ignited the ship's thrusters and blasted off. The Zeta Magnus clone was slain by Ventor after he was burned and irradiated by his ship's ion drive.
Apex Invader concept art
The Skyriver Invader was based on a proposed but never produced vehicle for the rejected extension of Kenner's Star Wars toy line, The Epic Continues, known as the Apex Invader. According to the craft's fictional story, Apex Invader was new villain Atha Prime's personal starfighter. The craft was able to attach atop Prime's starship, Annihilator, which gave him the ultimate command vantage point for battles. It was used as his personal fighting vehicle and was piloted by his pilot droid Blue-Four.