Devastation of Ambria

The destruction of Ambria was one of the early events of the Old Sith Wars. The planet Ambria was home to a female Sith Lord who used it to perform experiments into the nature of the dark side. With the arrival of Jedi Master Thon, the two battled, and the Dark Lord used her knowledge to unleash a massive dark-side pulse that killed every living thing on the planet, save Thon.