Baylan Skoll may not be a Sith Lord, but a chilling Ahsoka season 2 theory hints that he will discover an ancient dark-side power. A former Jedi who survived Order 66, Baylan believed that the Order’s destruction and the Empire’s ascendancy were inevitable, a vicious cycle constantly repeated throughout history. He sought power not to rule like a Sith, but to bring the cycle to an end, and this quest brought him to the planet Peridea in another galaxy. Balyan sensed a dark power calling to him that he believed would finally allow him to complete his mission.

https://screenrant.com/star-wars-ahsoka-season-2-sith-baylan-sith-power-theory/