The Grysk Hegemony, hailing from the Unknown Regions, utilized a type of warship known as the StoneCrusher-class WarMaster. Instances of this class included vessels such as the Armageddon, Emery, and SkySweep. In terms of size, a StoneCrusher fell between the Chiss Ascendancy's Nightdragon man-of-war and a heavy cruiser. Furthermore, it was smaller than the Grysk's own Shatter-class WarMaster yet larger than the BattleChiefs that formed part of the Grysk armada. While typically manned by Grysks, Qilori from Uandualon noted that the navigator was an Attendant of an unknown species.