Rudy
Poor Rudy only managed to last all of four episodes before biting the dust at the hands of a Division 3 agent. But during those four episodes, we got to see him show off a few amazing skills. While the Legion (and X-Men) universe seems to have an overabundance of telepaths, Rudy had the distinction of being a telekinetic. So he couldn’t infiltrate anyone’s mind, but he sure as hell could use his own to throw a giant boulder at them.