[Source] The Sith Abattar was a Sith amulet, found by Sorzus Syn shortly after her arrival in Sith space. She used it to master the Sith, both written and verbal. Millennia later, it was discovered on the planet Dathomir during the New Republic's reign. It was found on the Jedi training vessel Chu'unthor and was one of the many items stored on it.