The Reaver was a Sabaoth destroyer under the command of Lieutenant Bella, ensign to Captain Cavik Toth. The Reaver saw combat just prior to the Clone Wars.
The Reaver was dispatched to Nod Kartha during a raid by the pirate captain Nym and his allies in the Mere Resistance. Lieutenant Bella directed her forces in the recovery of a damaged Orbital Defense Cannon above the planet, but ordered her starfighter squadrons to engage the pirates upon sighting.
Despite Bella's efforts, Nym and his companions were able to flee with the parts to the cannon, which was later used in the fight to reclaim the pirate base on Lok.
The Reaver is named in the 'Tug of War' mission. It is possible to destroy the Reaver during this mission, though a second flagship soon takes its place, with Lieutenant Bella onboard and apparently unharmed. It is assumed this is not part of the game's canon.
- The Clone Wars Campaign Guide