As you may already know, Disney currently has an animated show called "Starwars Rebels" In said animated show, there is a character called the Inquisitor. The inquisitor is undeniably a sith. And this show takes place before the events of episode 6. Before the end of episode 6, Darth Vader and Darth Sidious were the two primary sith. Now if we look back into official StarWars lore, we see that the sith lord "Darth Bane" created the rule of 2, which stated only 2 sith could reside at one time. A master and an apprentice. The apprentice would have to kill the master to gain power. Now if the tv show takes place before episode 6, then how is it possible for the Inquisitor to exist? Darth Vader and Sidious already meet the requirement for the rule of 2. The Inquisitors existence is against the ideals of the sith. Just a little something that bothered me.