The Sivuskras Ruiner is the Vasari's Minelayer Cruiser added in Entrenchment. Official Description: While other races rely on constructor ships or drones to deploy spatial charges, the Vasari have a dedicated vessel for this task in the Sivuskras Ruiner. The mobility of Ruiner allows the Vasari to deploy minefields on any world - which can be a nasty surprise for unaware enemies jumping into a gravity well.