The Kethor, a Mere cruiser, was under the command of Captain Orsai in the time leading up to the Clone Wars.
Before its destruction, the Kethor took part in the Battle of Nod Kartha, where it fought alongside its sister ship, the Tritus, under the leadership of Nym. Emerging from hyperspace, the Kethor suffered a direct hit from Nod Kartha's orbital defense systems, resulting in catastrophic damage. The crew evacuated via escape pods, but Captain Orsai stayed behind, setting a course to collide with the closest of the planet's two shield generators. The Kethor then rammed into the generator, triggering an explosion that eliminated both generators and cleared the path for Nym's ground forces.