Beyonder is fiction so fictional mimicry might be able to mimic their powers unless of course the fm exists in a universe where beyonder and mm are real then it would be difficult to say
Hahaha, I guess I need to get new prescriptions for my contacts I completely missed the bracket text there too bad I can’t change my pole vote, or atleast idk how lol
No experienced user of Fictional Mimicry would limit themselves in a fight. And there is nothing stopping them from using other powers from other characters. It doesn't matter what they start with.