A Sith Holocron is a powerful artifact from the Old Republic era. They were highly sought by mainly the Sith, bit also Bounty Hunters, fallen Jedi, and other beings that wanted power. Everyone that fits the type wanted a Holocron so bad, but it was very hard to get. They were so hard to get that the only Sith to get one in over 1000 years is your character in a game on Steam ™ called Star Wars ™ The Old Republic. You can choose to be many things in that game, but if you want the Sith Holocron, you have to choose the path of the Sith. They could vary from the tip of a pyramid to the size of your palm. An example of someone who had handsized Sith Holocrons was Darth Vader. After Vader had been left to die on Mustafar, formerly Anakin, Palpatine created a robotic suit for him and put a Sith Holocron in each of his hands. This was so Vader would be very powerful, but the damage was already done. After Anakin had his arms and legs chopped off, he lost a lot of power due to losing a ton of cells with missing limbs and 3rd to 4th degree burns throughout his outer and internal body. The Sith Holocrons in his hands did help a lot because it allowed him to use The Force better than he ever could. Specifically better than he could without them. Due to him not having hands, the force was very hard to use. He could still use The Force, but it was harder without the Holocrons boosting his power. One big thing the Holocrons along with him being The Chosen One did was allow him to go into the force. This version of Vader is called the Dark Dimensions Vader. This vader was the most powerful version of himself. he grew back his limbs temporarily and "defeated" Yoda, Obi Wan, Mace Windu, and many other Jedi all at once with ease. As seen in the picture on the bottom left, he had 2 lightsaber blades that had no hilt. He was very powerful thanks to the Holocrons, the Sith, and his abilities as The Chosen One.