As long as she has Wonderman's powers she will not have control of her mutant powers? for making it too powerful, or it could be written with the powerset of WM and the control of its mutant powers?, she is currently invulnerable, they have super speed, it is a super strong class 100 ++++ and flies, besides that it has a lot of potential WM blocked at the moment, and has its powers of absorption but without control, which uses them but as a last alternative.
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And she has been able to manage practically alone, enemies that would be a lot for a full X-Men squad (there are exceptions like Storm of course), that's why I fear her right now is so powerful, that while she has that powerset, she will not be given the control of its absorption, since we know that it can do with control and every time it showed more and more, for example to stop a celestial taking all the power of all the heroes of the earth, I believe that the greatest feat of power that has done an x-man so far.