system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Could Darth Maul use Force Lightning?

He had been training with Sidious since he was a child, so did Sidious ever think to teach him?
gpt
No. He thought explicitly NOT to teach him. Force Lightning is sort of an end-game power. It is the very last thing you learn, something that requires almost complete mastery of the force to utilize. And Sidious had no intention of EVER teaching him that, because Sidious has no intention of furthering the Rule Of Two. Under the Rule of Two, once Sidious had taught Maul everything, Maul would rightfully have killed Sidious and become the master, so Sidious kept his teachings to a minimum. That way, his apprentice could never rise against him.