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.
Yeah literally, just turn their brain into an acorn, she can kill omni man and every vitramite. Sure she made a mistake making a park without consulting the city and experts about the logistics, so easy way to fortify earth, is work with cecil to make a giant barrier or extremely powerful weapons. Or city planners and engineers to build shit in africa or something if she is more into that.
She can’t directly manipulate animals, otherwise she’d be doctor Manhattan