The PCS Bester was a modified Gettysburg Class Light Cruiser used by the Psi Corps during the Telepath War against rogue telepath and mundane forces. Though from the exterior, the Bester looks like a repainted Gettysburg class, she is actually a lot more deadly. She was so powerful that she ripped apart a Warlock Class Destroyer (the EAS Rorke's Drift) above Orion VII, by targeting it's reactor. 3 months after that event, one of Lyta Alexander's followers managed to slip aboard the PCS Bester and sacrifice themselves to destroy the accursed vessel.