A crossguard lightsaber is a lightsaber variation that emits a primary blade along with two short side blades (quillons). Kylo Ren wields a crossguard lightsaber with unstable red blades throughout the Star Wars Sequel Trilogy. The Kylo Ren lightsaber, the first crossguard lightsaber in Star Wars Canon, is introduced in the film Star Wars: The Force Awakens (2015).
Crossguard Lightsabers in Star Wars Canon
An ancient design, crossguard lightsabers are commonly wielded by ancient Jedi practitioners of Form II (Makashi) of lightsaber combat. Darth Atrius wields two crossguard lightsabers. Ezra Bridger discovers a crossguard lightsaber with a green blade on Malachor, however, the weapon breaks upon activation. Kylo Ren constructs and wields a red-bladed crossguard lightsaber throughout the Sequel Trilogy. Ren ultimately returns to the light side, regaining his identity as Ben Solo and discarding the Kylo Ren crossguard lightsaber in the water on the ocean moon Kef Bir.
Crossguard Lightsabers Variations (non-Canon)
Several non-Canon crossguard lightsaber variations exist. Crossguard variations in Star Wars Legends include: a forked lightsaber (emits a primary blade and one secondary blade angled 45 degrees from the main hilt) and a vented dualsaber (a double-bladed lightsaber with two side blades [four blades total]). Additionally, some custom saber companies have developed claymore or broadsword style crossguard lightsabers with a single lightsaber blade and a metal crossguard.
COVER IMAGE CREDIT Lucasfilm/Disney
Image depicts Kylo Ren extending his crossguard lightsaber with unstable red side blades.