Xyston-class Star Destroyer

The Xyston-class Star Destroyer, also known as the Xyston-class Destroyer, the Final Order Star Destroyer, the Sith Star Destroyer, Sith Destroyer, or simply the "planet destroyer," was a model of Star Destroyer exclusively used by the Sith Eternal's fleet, the Final Order. Manufactured by Kuat-Entralla Engineering and essentially derived from the traditional Imperial-class Star Destroyer, the Xyston-class was one of a kind due to its axial superlaser capable of annihilating any world or ship. The Sith Star Destroyer represented the culmination of the Dark Lord of the Sith Darth Sidious' vision of a galaxy forced into submission by sheer military might and intimidation.

Patiently built in utmost secrecy on Exegol at Sidious' behest during and well after the Galactic Civil War, the Xyston-class Star Destroyer would prove to be the most powerful ship ever made in galactic history, as a single destroyer would pose a deadly threat to virtually any world or vessel. Although the Xyston-class Star Destroyer successfully raided and obliterated the planet Kijimi, it would not see action until the climactic Battle of Exegol in 35 ABY, where the thousand strong fleet of Sith Star Destroyers faced overwhelming odds.

Darth Sidious ordered Allegiant General Enric Pryde to deploy the fleet of Xyston-class Star Destroyers from Exegol, but their launch was prevented in extremis by the destruction of the Sith fleet's flagship. Trapped in Exegol's atmosphere and unable to move from their position, the Sith Star Destroyers were ultimately destroyed one after the other at great cost by the Resistance. Not only their destruction potentially saved many worlds and deprived the First Order of decisive reinforcements, it also sealed the collapse of the Final Order and with it, marked the turning point of the ongoing war in favor of the Resistance.

Unparalleled and well ahead of its time, the Xyston-class Star Destroyer was a redoutable battleship that could and should have been the ultimate weapon guaranteeing the domination of the Sith Eternal upon the galaxy. But critical flaws in its conception prematurely sealed its fate before the Sith Star Destroyer could unleash its full potential. Ultimately, the Xyston-class Star Destroyer was abandoned and disbanded following the death of Darth Sidious and the subsequent destruction of its representatives at the Battle of Exegol.

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