15JOHNNY QUICK VS. CAPTAIN COLD
Take the somewhat cocky Flash and turn him evil and you get Johnny Quick, the fastest douchebag this side of Earth-3, from Forever Evil by Geoff Johns and David Finch. Quick corners Cold, snatching Cold's ramshackle cold-gun. Boasting that he's already killed Earth-3 Leonard Snart, Quick mocks
Earth-1 Snart for utilizing a "lame-ass freeze-gun," which is useless if you don't have your finger on the trigger.
Cold makes two things clear: First, that's a cold-gun in Johnny's hand, which literally stops atoms. Second, if your power-set is based around a sci-fi gun that's no longer a part of your DNA, you best invest in a voice-activated trigger. With a "Jingle Bells, Batman Smells," Cold glaciates Johnny's thigh before shattering it with a kick. This is Captain Cold at his coldest, having zero respect for this "Mirror, Mirror" Flash.