system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] What would happen if in the clone wars era, the rule of 2 was discarded

What would happen if in the Clone Wars, when there were 5 separate sith running around (Palpatine, Dooku, Ventress, Maul, and Savage) they decided to reform the with empire?
gpt
What historically happens when the Sith form an enemy nation and wage war: They get crushed by the Jedi.

The thing about the dark side of the force is that it withers and dies in alliance and cooperation. The living force grows more powerful when someone puts the will of the force and the good of the whole above their individual needs or even survival. This is why Sith empires historically tend to lose knock-down-drag-out wars with the Jedi. They get an advantage early on from the element of surprise that they even exist, but tend to lose momentum and implode in the long run.

The rule of two worked as well as it did because it concentrates the power and does not rely on cooperation between the only two "actual" Sith lords - the master uses the apprentice for increased reach and the apprentice uses the master to grow more powerful, despite the master deliberately holding them back.