"No one could. It's made of fear," Winter says, not sure if he's relieved or more worried. At least logically that strategy doesn't make any sense, so he can counter it. "Turning that fear back on it will only make it stronger. And besides. You can't punch something you can't even see." Which is what the serum is good for. Punching things. And surviving things. "Nothing the serum can do will do a damn thing for what's in our heads. That's where fear entities work."