The Ashern, whose name translates to "Black Claw" in the Vratix language, were Vratix individuals who grew dissatisfied with the Human-dominated bacta syndicates operating on Thyferra. In their struggle against this control, they adopted extreme measures, including acts of terrorism—a rarity for their typically pacifistic species—and physical alterations like claw sharpening and black carapace painting.
In the year 7 BBY, the Ashern chose to reveal information indicating that the Xucphra Corporation artificially inflated bacta prices during the Stark Hyperspace War via production sabotage. This revelation resulted in the transfer of planetary governance to the Vratix, ushering in the era known as the Thriving Season.
Via Qlaern Hirf, the Ashern contacted Wedge Antilles and announced their desire to align with the New Republic. Other Ashern provided support to Iella Wessiri, Elscol Loro, and Sixtus Quin during their clandestine efforts aimed at deposing Ysanne Isard. An Ashern commando unit actively fought against Isard's rule, participating in successful missions targeting Aerin Dlarit at his estate and the raid on the Xucphra Corporate Headquarters.