The Nightsisters are a group of dark side Force users from the planet Dathomir in the Star Wars universe. They are known for their unique blend of magic and the Force, often using spells and potions in their practices. The Nightsisters are led by powerful witches, with Mother Talzin being one of the most notable figures among them. These witches often engage in battles against the Jedi and other factions, utilizing their abilities to manipulate the environment and summon creatures. The Nightsisters have a strong connection to their home planet, which is rich in dark side energy, influencing their powers and practices.