There have been so many mutants on the X-Men roster it's hard to keep track of them all, and minor league mutants like Jubilee and Shatterstar are often overshadowed by A-listers like Wolverine and Jean Grey.
But certain eras of the comic saw dozens of new members joining the X-Men, and even though these newbies were overshadowed they had to be secretly awesome to join the X-Men, right?
Shatterstar is a Liefeld creation, but don't hold that against him, because this badass from Mojoworld is not only one of the strongest fighters to ever join the X-Men- he's a trailblazer for gay characters in comics.
And speaking of blaze- Jubilee's plasmoid "fireworks" are often described as being nothing but flashes of light, but like most mutant powers she just had to learn how to control it to unleash its full potential.