Darth Bane

Darth Bane was a powerful Sith Lord in the Star Wars universe, known for reshaping the Sith Order. He believed that the Sith's strength came from strict rules and unity, particularly emphasizing the importance of the "Rule of Two"—only two Sith at a time: a master and an apprentice. This idea was to prevent internal conflict and ensure the Sith's survival and growth. Bane's teachings and actions significantly influenced the Sith, making them more disciplined and focused. His legacy is central to the Sith's history, shaping their secretive, cunning nature and their ongoing conflict with the Jedi.