Created by Rob Liefeld, and a relatively early member of the team X-Force, Domino has one of the more unique abilities in the X-Men universe. As her name implies, Domino has an amazing ability to make seemingly impossible odds a reality. By essentially altering the course of good luck vs bad luck, Domino's reputation is well earned, giving her an almost prophetic presence.
Visually, Domino is a striking figure. She comes off as a one-woman army, packing numerous weapons that can put a hurt on whomever is unlucky enough to be considered a target. The contrast between the different elements of her face also create a very unique look, and with comics being just as much a visual medium as anything else, it helps make Domino stand out even more.
The combination of unique powers, a killer look, and a haunting back story have allowed Domino to begin breaking out into the mainstream. She's appeared in numerous cartoon and video game adaptations based on the X-Men, and whilst it's unknown if Domino will ever get the big-screen treatment, you never know when your luck might change.