A male Grysk commanded the Shatter-class WarMaster HopeBreaker while the warship orbited the Unknown Regions planet Sunrise, which the Grysk species had , around 18 BBY. Admiral Ar'alani of the Chiss Ascendancy nation's Picket Force Six traveled to the world and found an asteroid missile platform directed by the Grysk after an earlier skirmish with the HopeBreaker. She and Senior Captain Xodlak'in'daro "Lakinda" hailed the commander through comm, inquiring him on who wanted them to leave the planet. The HopeBreaker clarified that the inhabitants had begged him to protect their world after it was devastated by the "evil" forces of the Nikardun Destiny hegemony, and ordered the Chiss task force to leave.
Lakinda's Chiss heavy cruiser Grayshrike approached the massive Grysk warship while the admiral's Nightdragon man-of-war Vigilant attacked the HopeBreaker and contacted its commander. According to Ar'alani, the Grysk mentioned the term generalirius when referring to the Nikardun General Yiv before he destroyed his own warship —fearing Chiss study—and told Ar'alani that he would destroy all the Chiss as he knew how to destroy the Vigilant.