Mattenic functioned as a lieutenant under the crime lord Nirama throughout the Clone Wars era.
Following Riboga's (Hutt) return to the Cularin system and subsequent overthrow of Nirama to reclaim criminal dominance there, Mattenic, along with Kerkum, a fellow lieutenant of Nirama, sought refuge within a derelict manufacturing plant located in Gadrin, a city on the planet of Cularin. The Heroes of Cularin journeyed to this factory to rendezvous with them, only to be confronted by a contingent of bounty hunters dispatched by Riboga with the mission of apprehending both Mattenic and Kerkum.