The lightsaber's redesign was a byproduct of the bleeding process that damaged its kyber crystal, rendering it dangerously flawed and unstable, and necessitating the lateral vents were meant to prevent the cracked kyber crystal from overloading.
The crossguard blades allow Ren's saber to operate safely – his weapon is constructed around a dangerously flawed kyber crystal, which would be overloaded if not for the lateral plasma vents that create the quillons.
In hindsight, Kylo Ren's lightsaber was a physical representation of his inner turmoil in the Star Wars sequels: It's erratic and shaky, just as he was mercurial and indecisive. Despite his public stance, it's clear that he was never really fully able to get rid of the light in him.
The reason his lightsaber is unstable lies in the crystal it contains. Kylo Ren's Kyber crystal cracked due to his inner turmoil. This crack mirrors the battle inside him, torn between his Skywalker legacy and his allegiance to the dark side.
Many fans speculate that Kylo Ren never really learned the ability to properly construct his own lightsaber since he did not fully complete his Jedi training with his mentor Luke Skywalker. More importantly, the lightsaber uses a cracked Kyber Crystal, which is the main cause of the blade's irregular appearance.
Every Fine Addition in General Grievous's Collection [EXTENDED]
How is Kylo Ren not a Sith?
He was Palpatine's genetic creation, one who hadn't genuinely mastered the ways of the Sith and, thus, he was not an actual Sith Lord. Nevertheless, Kylo killing the one he believed was his master was undeniably in keeping with Sith tradition.
The fate of Luke Skywalker's old lightsaber appeared to be symbolic of his philosophy; it was shattered in a Force tug-of-war between Rey and Kylo Ren. Even its Kyber Crystal was broken. And yet, in spite of that, Rey succeeded in repairing the lightsaber in Star Wars: The Rise of Skywalker.
Why Did Rey Bury the Lightsabers? Since Luke and Leia, her masters, have become one with the Force, this is her way of honoring them by putting their weapons to rest. It also shows that Rey is burying the past while carrying it with her — both in her spirit and in the lightsaber she now wields.
In the construction of a Sith lightsaber, individuals partook in a process known as bleeding. By ways of the Force, they would pour negative emotions, such as rage, hate, fear, and pain into kyber crystals. The process would result in the crystals gaining a distinctive crimson or red hue.
Traditionally, yellow lightsabers are associated with Jedi Sentinels, who balance their combat skills with a strong focus on exploration and practical application of the Force. This choice reflects Rey's well-rounded training and her determination to maintain balance in the Force.
He saw her as a useful tool for his rise to power. He was intrigued by the mystery surrounding her. He wanted closure for his defeat at her hands. He had a genuine emotional connection to her.
The dyad is an unbreakable Force-bond that makes them one in the Force, despite being born as two physically separated individuals. Thus, despite not being related by blood, Rey is Ben's other half, making her his "soulmate" or "twin of the Force". As such, they were connected before they even met.
Kylo Ren was always obsessed with his grandfather. He didn't learn he was the grandson of Darth Vader until he was a teenager, when a recording from Bail Organa - intended to be a private message for Leia - was shared with the entire galaxy.
Single-bladed lightsabers are the most common lightsaber, being efficient and deadly. This was the saber Kylo Ren learned to wield at Luke Skywalker's new Jedi Academy. However, the reason Kylo's blade is crackling is because the Kyber crystal was fractured as he bled it, turning the blue blade red.
Kylo Ren's obsession with Vader is clear, but Star Wars never explained how he acquired the helmet. It is speculated that he may have found it himself on Endor, or it could have been passed down to him by Supreme Leader Snoke.
Sith hate who use Sith who use purple lightsabers because they believe they are not true sith, and they do not like jedi's who use purple lightsabers either because they think that jedi are cheating using dark side of the force and its powers but not fully falling completely to the dark side.
Any kyber crystal could be bled by a Force user, including one's own, for example, if they were a former light side practitioner and kept their lightsaber. However, some Sith believed that the proper method was to take a kyber crystal from a Jedi's lightsaber and bleed it.
The Darksaber. The only black blade-like Saber ever made, constructed with fine Beskar, by the only Mandalorian to ever become a Jedi in the Order's entire history.
Following Palpatine's final defeat and her own resurrection, Rey adopts the name Rey Skywalker to honor her mentors and their family legacy and renounce her lineage. As the last remaining Jedi, she makes it her mission to rebuild the Jedi Order.
By the time Rey touches the weapon, Anakin has long been redeemed, and the essence inside the Skywalker lightsaber is constantly calling her to learn the ways of the Jedi and fight against the dark side in his place.
He gave it to Luke Skywalker, who lost it when Darth Vader struck off his son's hand in Cloud City. The lightsaber then became part of Maz Kanata's collection of Jedi curios, where it called to the scavenger Rey. She wielded it in defeating Kylo Ren, then brought it to Ahch-To and offered it back to Luke.
Parents debate. Some fans have speculated Rey to be either the daughter of Luke Skywalker and another woman or daughter of Han Solo and Leia Organa, therefore the sister of Kylo Ren. She would also be the granddaughter of Anakin SKywalker and Padme Amidala.
