This unique crossguard lightsaber belonged to Kylo Ren, an agent of the First Order serving as Master of the Knights of Ren approximately thirty years after the Battle of Endor. The lightsaber was crudely assembled based on an ancient design dating back thousands of years to the Great Scourge of Malachor. Despite being an ancient design, the lightsaber had modern components inside it. A single cracked Kyber crystal, barely able to contain the weapon’s power, necessitated the lateral vents which diverted the extra heat produced by the crystal to either side of the hilt, and gave the weapon’s red plasma blades an unstable, serrated appearance. To balance the weapon’s power, the crossguard blades emerge after the main blade appears.