User blog comment:Corelli/Wiki get your Character stats Correct!!!!/@comment-61371-20101031233727

Technically, there's no official definition of what an "Omega-class mutant" is (or any of the other classes). Though you are right, she shouldn't have that on her page without there being a reference (there ARE a few that are specifically called Omega-class, but again, that's never been defined in ANY official capacity).