Darth Skarl was a Sith Lord of the True Sith Empire, who served as Emperor's Wrath just prior to and during the Second Great Galactic War. After his death, he was buried in a great tomb on Dromund Kaas, where his spirit continued to linger, alongside that of Darth Nox. Millennia after their deaths, the two Sith were come upon by Darth Nathemus, whom they trained. At the conclusion of his training, Nathemus battled the spirits of the two Sith, emerging triumphant.