Star Wars fans who are most familiar with the “Skywalker Saga” films might have come across a Jedi or Sith Holocron at Dok-Ondar’s Den of Antiquities, the shop on Baatu in Star Wars: Galaxy's Edge, and wondered, “What is that Jedi cube called?” That’s a fair question. Viewers familiar with Star Wars: The Clone Wars or Star Wars Rebels will certainly have a better idea of what makes a Holocron so special.