Slombo, who held the Storm rank, was a member of the Nihil group of marauders. Sometime between 231 BBY and 230 BBY, Slombo spearheaded Nihil forces in an assault against a repository located on the Outer Rim planet of Quilken. The arrival of the Tempest Runner Lourna Dee disrupted the Storm's assault; Dee was after whatever valuable treasures the vault held. Despite Slombo's objections and claims of ownership, Dee instructed Muglan to unleash scav droids onto the battlefield.
Once the droids guarding the vault were neutralized by the scav droids, Slombo and Dee ventured inside, only to find that the "treasure" was actually the Ikkrukkian Jedi Master Porter Engle. Dee commanded her marauders to eliminate Engle, but the Jedi Master employed the Force to hurl scav droids at the oncoming Nihil. Seeking to reclaim his status, Slombo engaged Engle in combat, but the Jedi Master overpowered him as Dee and her forces made their escape.