Ahsoka continues to delight die-hard Star Wars fans with its deep-cut references. The series has featured the Witches of Dathomir, the Inquisitorius, and even referenced Darth Sion. But casual fans may find themselves iced out of the canon; the saga has decades worth of stories to respect, and even if not all of them are accepted, the universe remains vast and dense, so it’s incredibly easy for a casual fan to miss the introduction of a new concept.