Gorgons are mad freaky. They hail from the creepiest parts of the ocean, rock snakes for hair, and turn anyone who looks at them to stone. The most famous of them, Medusa, was a mortal who was outfoxed by the hero Perseus. So if Perseus can kill one, Superman could handle it too, right? Wrong. Medusa's older sister Stheno would destroy Superman. The Queen Bee of the Gorgons, Stheno has all the same powers as Medusa, plus she's immortal, plus she is royally pissed off about 3000% of the time. She has killed more men than all other Gorgons combined. Man of Steel? More like Man of Stone.