Barbeln is an Invader that is a subspecies of Fedeln Metzelei, sharing many similar traits. Barbeln's wings are more specialized in offense, using her wings to cut down enemy troops and unleash blasts of galactic energy to destroy everything caught in the blast radius.

Due to this, she enjoys the thrill of a fight. She cares for Fedeln, protecting him whenever possible, and is worried that he isn't aggressive enough despite his devastating power.