A destroyer class of starship was fielded by the Chiss Ascendancy's Expansionary Defense Fleet, a nation located in the Unknown Regions. These Chiss destroyers were built with nyix-alloy hulls, equipped with both engines and a [hyperdrive](/article/hyperdrive], and utilized electrostatic barriers as shields. Their weaponry suite consisted of spectrum lasers, plasma spheres, and breacher missiles. During 19 BBY, several of these ships participated in a battle above the planet of Primea, belonging to the Vak Combine, against the Nikardun Destiny under the command of Admiral Ar'alani's Picket Force Six.
In 18 BBY, the pilot of the Xodlak family frigate, the Midsummer, previously served as the third pilot on a Chiss destroyer before a family emergency recalled them to serve aboard their family's warship.
The Chiss destroyer made its debut appearance in Thrawn Ascendancy: Chaos Rising, a 2020 novel, and the first book in Star Wars: The Ascendancy Trilogy by Timothy Zahn.