The Onager-class Star Destroyer is a 1500-meter long Destroyer and superweapon-like capital ship designed by Rothana Heavy Engineering, shrouded in secrecy from its inception. It resembles an Imperial Star Destroyer, save for the fore of the vessel which has two outward prongs to form a T-shape. Its Superheavy Composite Beam Turbolasers are allegedly powered by kyber crystals. These weapons are powerful enough to engage capital ships from extremely long range, as well as conduct cataclysmic assaults on planets. It features two docking bays. The Onager served as the basis for the Mandator IV-class Siege Dreadnaught and later, the Xyston-class Star Destroyers.

Armament
6 dual heavy turbolaser batteries
24 heavy turbolaser batteries
20 point-defense laser cannons

Complement
25,200 crew
14,000 passengers 3 squadrons of starfighters

• 1 Starfighter Hangar slot of capacity 3, allowing items of type Squadron
• 1 Capital Ship Upgrade slot of capacity 10, allowing items of type Capital Ship Upgrade Reward, Capital Ship Upgrade I, Capital Ship Upgrade II, or Capital Ship Upgrade III
• 1 Auxiliary Hangar slot of capacity 1, allowing items of type Flight

• 1 slot allowing Aspects of type Space Vehicle Cosmetic
• 1 slot allowing Upgrades of type Onager Superweapon