Light Lass never got a lot of "face time" in the classic era of the Legion...possibly because her "superpower" (making things lighter) wasn't exactly too formidable. It did provide the writers with lots of opportunities for her to be imperiled...usually getting rescued by her b/f Timber Wolf(a Wolverine knockoff, atually) .
Here Organus is about to suck the energy out of the blonde lovely, but she gets rescued by...yup, Timber Wolf...
Source: blog