The build-up leading to the reveal of Palpatine as Darth Sidious uncovered many hints and history about the dark lord. The clip below shows one of the sinister hints as to who Palpatine really was.
Even as an apprentice under Darth Plagueis, Palpatine already had his lightsaber. So by the time we see Palpatine wielding a lightsaber, we’re no longer completely surprised.
With a red plasma blade, it was absolutely certain that he was the Sith lord. His saber’s hilt made use of Aurodium, Electrum, and Phrik Alloy. Just like most Sith, his saber made use of a synthetic crystal.
Sidious also had 2 sabers where the other was a backup. The spare saber was just like the original but it made use of a certain black alloy, the origins of which is currently a mystery.
When Palpatine became a politician, he kept the saber hidden in a statue of Sistros. It was kept there for 20 years.
To the dark lord, wielding a lightsaber was merely for mocking the Jedi and he didn’t use the weapon in combat very much. As we know, he rarely engaged in battle at all and usually had others do the dirty work for him.
What's Palpatine Lightsaber Form?
Whenever Sidious fought an opponent, it looked like he adjusted his approach and even mirrored his opponent’s fighting style. Take a look at how he fights Mace Windu in the video below.
However, it’s also said that he isn’t actually mirroring his opponent, Windu. Instead, it seemed to look that way because he was a user of Form VII, too.
On the other hand, he also used Dun Möch, a style used mostly by the Sith. Dominating the opponent using distraction and taunts is unique to this fighting style.
The end goal of this is to find a weakness in their opponent. For instance, Darth Vader talked about turning Princess Leia to the dark side, which angered Luke.
Again, anger is an emotion attributed to the Sith, so that reaction was exactly what Vader was looking for. If the fighter does not focus and allows their emotions to take over, the Sith will definitely win.
From time to time, he also threw in some techniques used in Jar’Kai. This was exhibited when Darth Maul and Savage Opress fought against Darth Sidious in Clone Wars.
(Warning: Spoilers ahead!) Moreover, if you’ve watched the sequel trilogy, you’ll also notice that Palpatine and Rey have a similar fighting style. This has been frequently pointed out by fans who were trying to find out more about Rey’s lineage.
Now, if you’ve already watched the Star Wars: Episode IX - The Rise of Skywalker, the similar fighting style seems to be making sense. This is because it has been revealed that she is Palpatine’s granddaughter.
However, there’s a complication with their similarity in fighting style. Rey was not trained thoroughly at all and has only been given a few lessons by Luke.
On the other hand, we have Palpatine who was trained under Darth Plagueis. So it’s definitely illogical for them to have a similar fighting style other than for the reason of alluding to the fact that she is Palpatine’s granddaughter.
What happened to Palpatine's lightsaber after his duel with Yoda in Revenge of the Sith?
In Revenge of the Sith, Yoda and Darth Sidious engaged in an iconic battle. First, they used the Force to hurl objects at each other, but they later settled the fight with lightsabers.
At one point, as can be seen in the video below, Yoda and Sidious duel with sabers. However, Yoda ends up knocking out Palpatine’s saber out of his grip.
The dark lord uses his Force powers to hurl senate pods at Yoda. Unfortunately, the Jedi Master ended up having to retreat.
What exactly happened to the lightsaber is unknown. If you remember, he also lost his lightsaber out the window when he dueled against Windu.
After losing his lightsaber against Yoda, I doubt that he cared to look for his weapons at all. By the time the Jedi were eliminated and were out of the way, there was no need for him to keep a lightsaber.
Unlike the Jedi, the Sith had no real connection to their lightsabers. It was merely a tool to meet an end or to use against the Jedi Knights.
Oppositely, the Jedi viewed their lightsaber as a tool of peace. Each saber was unique to each owner, so there’s definitely a deeper attachment between the Jedi and their lightsaber.
Again, we are aware that he dislikes lightsabers and simply uses it to mock the Jedi. He wouldn’t feel the need to look for his saber at all. If he needed another one, he would have simply created another one.