Regimus was the second flagship of Darth Keizer. The YG-4210 light freighter was heavily customized and modified, to house a Tractor Beam Generator, 2 prison cells, various cloaking devices, improved Hyperdrive, heavier armor, and extensive weaponry. Keizer used Regimus to do his master's bidding, while Darth Sinity planned his comeback from his hidden base on Hoth. Keizer performed smuggling operations, kidnappings, asassinations, and bounty hunting using Regimus to earn credits, to fund Sinity's plans. Sinity and Keizer escaped the destruction of the new Jedi Temple in Regimus, after Sinity piloted his flagship, Rising Moon, into it. The freighter was destroyed moments before Keizer's own death, on Kamino.