Count Dooku's red-bladed lightsaber was an elegant weapon befitting a refined man. Its gracefully curved hilt let Dooku slash and lunge with greater precision. Dooku defeated Obi-Wan Kenobi and Anakin Skywalker in a lightsaber duel on Geonosis before being bested by
Count Dooku was a Force-sensitive Human male Jedi Master who fell to the dark side of the Force and became a Dark Lord of the Sith, known as Darth Tyranus.
Count Dooku's lightsaber color was blue when he was a Jedi.
Interestingly, both his master, Yoda, and his apprentice, Qui-Gon Jinn, wielded green lightsabers — a visual cue that Dooku was out of step with those around him even before he turned to the dark side.
Why was Count Dooku's lightsaber red? He had fallen to the Dark Side. Kyber Crystal create a red Lightsaber when attuned to a person who is far into the Dark Side.
As learned in Star Wars: The Clone Wars season 5, episode 6, "The Gathering," when a Jedi fashions a lightsaber, they form a powerful Force bond with its kyber crystal. This bond is then instilled into the crystal, manifesting the color.
Affiliation. This blue-bladed lightsaber belonged to the Sith Master Darth Sidious after his resurrection on Byss. Darth Sidious using the lightsaber to battle Luke Skywalker. In his lab on the Imperial throne-world, Darth Sidious kept a number of stolen Jedi lightsabers if he needed them.
Dooku belonged to the aristocracy, and his weapon reflected an older, more chivalric style than the Jedi he faced. It also reflected his status as the head of the Separatists: the lightsaber looked far more ceremonial than practical, suggesting that he himself did not face combat nearly as much as the Jedi did.
Bottom line, Dooku never considered himself a Sith. And he wasn't; he was a man looking to change the galaxy in a way the Jedi were unwilling to try. And that is why he joined the Sith and became Darth Sidious' apprentice, Darth Tyrannus. When Dooku became Sidious's apprentice, he was already an elderly man.
Once a Jedi -- trained by Yoda -- he became disillusioned with the Jedi Order and thirsted for greater power. Dooku voluntarily left the light side behind and became Darth Sidious' dark side disciple, taking the secret name Darth Tyranus and leading the Separatist army.
Obi-Wan Kenobi
Obi-Wan was Dooku's polar opposite. Dooku hoped to have Obi-Wan as his Sith apprentice and went as far as to reveal Sidious's existence to convince him to join him. Obi-Wan didn't believe him and refused, resulting in the two being enemies ever since.
The Grand Master's apprentice
At one time, Dooku was the Padawan of Yoda, the Grand Master of the Jedi Order. In 86 BBY, Dooku later completed his Initiate Trials and hoped to be selected as the Padawan apprentice to Lene Kostana due to her mission in hunting down relics associated with the dark side.
At some point, Yoda took on a human named Kantam Sy as his Padawan.
Studying Jedi Archive records, Dooku based his new weapon design after the curved hilts that were standard during the heyday of Form II lightsaber combat. The curve allowed the hilt to fit better into his hand, allowing for superior finesse and precise blade control.
Like many of the other Sith, Count Dooku was incredibly proficient with the Force, even being able to win a fight against Yoda. Despite this, though, he still wasn't the best fighter with a lightsaber, and his Force skills were not nearly as powerful as Darth Vader's.
In one of the canon comics Sidious outright implied that Maul was pretty much head and shoulders above Dooku when adressing the potential. While Dooku was a useful pawn for him, Maul in the other hand seems to be actually his first choice as a heir before Anakin was really part of the picture at least.
Dooku was powerful and extremely skillful with his lightsaber, to the point he easily beat Anakin and Obi-Wan. Still, Dooku was less powerful than both of his masters – Darth Sidious and Yoda.
Revenge of the Sith (2005)
Anakin gives in to his hatred of Dooku and uses his anger to overpower him, severing both of Dooku's hands and leaving him helpless.
In legends, Dooku actually explains why he hates Anakin: He could feel Yoda's touch still lingering on the edges like a distant echo. Vividly his mind went back to their last meeting, on Geonosis: swords drawn at last, and finally equal.
When Dooku left the Jedi Order to become a Sith Lord, Yoda thought he merely left rather than turned to the Dark Side. Dark side clouded jedi orders ability to sense things properly. Also yoda did not believe dooku was a Sith lord.
Anakin regrets this decision, and Palpatine reasons with him saying that Dooku was too dangerous.
Jedi Master Yoda is the most powerful of them all. This should come as no surprise, as he was the head of the Jedi Order in the prequels and was revered for his abilities during the original trilogy. Yoda's power is unmatched and was a real threat to Darth Vader and the Imperials.
N'Kata Del Gormo was a Force-sensitive male Hysalrian Jedi Master who lived during the times of the Galactic Republic. According to legend, he found and trained Yoda and a Force-sensitive Human friend.
Sidious himself felt that he and his peers had outgrown the use of lightsabers, and only continued carrying them to mock the Jedi. He ultimately viewed his own lightsabers as little more than an affectation, and rarely wielded them in combat.
While lightsabers are the preferred weapons of most force users, Emperor Palpatine disdained the weapons, and believed the Sith should only use them to undermine the Jedi.
The relationship between Sith Apprentice Count Dooku and Jedi Knight/General Anakin Skywalker is one of the main enmity relationships seen in Star Wars: The Clone Wars. Anakin has a personal vendetta against Dooku because he had dismembered Anakin's limb and cuased him to get a mechanical arm.