It's very simple. Describe any X-character, or anything relating to the X-Men or the X-Men comics in five words. No more, no less. Avoid using "a, and, the."
-Beast: big, blue, loveable but lonely.
-Nightcrawler: swashbuckling gentleman with prehensile tail.
-*Sinkt!*: When you hear it, run.
-Genosha: more hospitable than Los Angeles.
-Chuck Austin: he killed Sammy! You bastard!
Get to work, and have fun. ;)
-FBF (too much time on hands)