You literally transmute matter at will, you do not need to fight Killcannon just turn his robot arm into cheese or something. Your nemesis is a villain that you do not need to consider the whole cannot effect living tissue thing for even a second. That is all.
Could Eve turn the air into chlorine gas? Into water? I know she’s got that mental block about doing it to people’s bodies, but didn’t she sort of overcome that in her special episode?
Only under extreme stress she can do that, and usually she faints afterwards