Your Sith name should reflect your unique dark side gifts and inspiration. Here are some possibilities:

Abominus

Abyss

Aeonus

Annihilus

Apocalus

Atrocitus

Calamitus

Chaos

Corruptus

Cosmus

Demonus

Diabolus

Dominus

Doom

Draconis

Eradicus

Erebus

Eternus

Execrus

Exodus

Fatalis

Furius

Galactus

Havok

Immortus

Imperius

Infernus

Infurius

Karnalus

Magus

Malignus

Malis

Maximus

Mindkiller

Morbius

Nebulus

Necros

Nefarius

Obliterus

Oblivius

Omega

Ominus

Ravenus

Ruinus

Satanus

Siddha

Sinistrus

Sorcerus

Supremus

Tartarus

Tenebrus

Terminus

Tribulus

Venger

Vicius

Vilanus

Void

Vulgarus

Wrath