Flinch is a biotic Volus, one of the few to exist and perhaps the only one able to harness the ability as significantly combat-effective. Flinch always had a deep sense of justice and honor but could not uphold these qualities because of his frailness. It wasn't until he underwent a crucial and experimental surgery that he would be able to harness the weak biotic power that he had.
The surgery amplified his biotic strength and concentration to a point that no ordinary Bio-amp could, making him as powerful as an experienced asari. In combat, Flinch constantly protects himself with a powerful
and is known to fire waves of mass effect energy at anything he deems hostile. Though he is powerful, Flinch is very paranoid even afraid of many people.