The Trager in the mirror universe was a Cardassian warship in service with the Klingon-Cardassian Alliance fleet. Like its regular universe counterpart it was under the command of the mirror universe counterpart of Gul Akellan Macet. It was described as being a heavy warship (possibly Galor-class). Unlike its primary universe counterpart the ship was not equipped with any Dominion-based technologies due to the fact that there had been no contact with the Dominion. (Therefore the Cardassians never joined the Dominion in the mirror universe.)