Kkkt's clan
A group of Mustafarians, a clan, resided on the volcanic world of Mustafar and were under the leadership of their Father, Kkkt. After they observed a starship plummeting from the sky in flames, Kkkt dispatched four members of his clan to investigate the crash site. These scouts encountered a shadowy figure, Darth vader, who killed two of them and used a cursed mask to take control of another. Subsequently, Vader initiated the construction of a structure designed to harness the Force's energies from a dark side nexus, resulting in violent lava storms that threatened Kkkt's clan. Kkkt shielded his people and resolved to unite the other clans in an effort to demolish this ominous construction.
History
In the year 12 BBY, Darth Vader journeyed to Mustafar aboard a Naboo Royal Starship. He piloted the vessel through the atmosphere without activating its shields, causing it to ignite as it descended. Father Kkkt and Zzzs witnessed this event, and Kkkt interpreted it as a significant omen. Consequently, he dispatched four Mustafarian scouts, riding on Lava fleas, to locate the crash site. The scouting party, comprised of Bbbl, Rrrn, Sssp, and an unnamed fourth member, initially found nothing and speculated that the ship had disintegrated in the lava. However, Bbbl then noticed Vader, who hurled a rock at him, sending him plummeting into the lava. The remaining three attacked Vader, but he swiftly eliminated another Mustafarian and forced a haunted mask onto Sssp, enabling the Sith spirit within to possess him.
Rrrn returned to Kkkt, providing a description of Vader. Shortly thereafter, Vader and Sssp, now controlled by the Sith spirit, commenced the construction of a massive fortress in the Gahenn Plains, with the intention of channeling the Force's energies from a dark side locus. Their attempts to utilize the fortress to unlock the gateway to the dark side resulted in the eruption of lava storms across Mustafar. Kkkt shielded his clan from the destructive lava, but as Vader and his Sith companion, Darth Momin, repeatedly failed to open the gateway, the storms intensified. Kkkt contacted other clanholds, discovering that they were experiencing similar calamities. He informed Zzzs that it was imperative for them to unite and safeguard what remained of Mustafar.
Kkkt spearheaded a Mustafarian army in an attack against the fortress. Despite outnumbering the Imperial garrison by a factor of ten, Vader proved to be a formidable opponent. Kkkt and the other clan leaders channeled the Force, unleashing a wave of lava that swept across the battlefield. Vader, the sole survivor, retreated into the fortress, prompting Kkkt and his remaining forces to attempt its destruction. However, Vader channeled the Force through the fortress, decimating the attacking army.