Devastator's Double-Bladed Lightsaber

Devastator's Double-Bladed Lightsaber is a Cartel Market artifact double-bladed lightsaber that can be equipped in a character's main hand weapon slot. It features a glow in the center of the hilt of the lightsaber when it is drawn. The color of the glow is based on the color of the crystal.

Source
Devastator's Double-Bladed Lightsabers can be obtained from Black Market Cartel Packs or Crime Lord's Cartel Packs purchased from the Cartel Market.