Tulak Hord
this ancient Sith Lord was buried in the Valley of the Dark Lords, on the planet Korriban, next to the tomb of Marka Ragnos. Among the artifacts Tulak Hord left behind was his mask, which served as a protective helm during his life. The mask aged to a dull black over time, but the eyes retained an eerie glow. Any being who wore the mask discovered a feeling of intense claustrophobia.