The Spine Dragon of M'dweshuu, a spine dragon from the depths of space, met its end at the hands of Ki Sazen, a Jedi Padawan. This event transpired on the world of Tas-La during the tumultuous Cold War that pitted the Galactic Republic against the Sith Empire. Following Sazen's victory over the beast, a cult emerged, composed of Nikto species members who revered her achievement. The dragon was named after M'dweshuu, a nova situated within the territory known as Hutt Space.
The initial reference to the Spine Dragon of M'dweshuu appeared in Star Wars: The Old Republic, a MMORPG developed by BioWare and launched in 2011. This dragon was referenced within the quest titled "The Cult of Ki Sazen," which unfolded on the planet of Taris and was specifically tailored for players embodying the Imperial Agent class.