Onca, the Ithorian brother and partner-in-crime to Bulduga was selected by Count Dooku to participate in a survival competition created by Maralo Eval called 'the box'. After his brother Bulduga was killed by Cad Bane before the contest even started, he started with a disadvantage. In the first challenge of the box, the bounty hunters had to escape a poisonous gas chamber. Onca fought over one of the pillars that rose above the gas with Kiera Swan, but they both ended up surviving the first round with the help of Obi-Wan Kenobi disguised as Rako Hardeen. In the second round, they had to dodge a series of saber like appendages that jutted from the walls. Onca became the first victim, and was impaled by one of the blades from behind.