The vibrosword was a longer, heavier version of the vibroblade. It was generally wielded with two hands, although some beings were strong enough to wield them with one and carry two of them. This sword was used by BX-series droid commandos during the Clone Wars and were seen to be effective against clone troopers of the Galactic Republic.
Like all vibro-weapons, it was dangerous to use vibroswords against electrical weapons, as they conducted electricity, therefore, electrocuting the user of the sword. Though electrocution was not the primary concern, electricity traveling up the length of the blade could connect with the weapon's energy cell and ultrasonic vibration generator. The result would be a miniature explosion with enough force to take off the user's hand.[source?]
It was more common around 3,956 BBY, since its lightsaber-deflecting abilities made it more effective against force users, who were more numerous during that era.
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