Or the Mediaeval stories of the legendary basilisk and cockatrice, the Greek myth of the Gorgon Medusa, and the tale of King Midas. All stories based around the terrifying concept of the Evil Eye being able to afflict the victim with a permanent loss of male potency (or, in the case of King Midas, the horror of being touched by another man ...)
I never read the Elric, Robert E Howard and C A Smith stories, so I wouldn't know about them. However, the other story mentioned, and I had to go and dig it up from the bottom of a very old pile of books, was The Voyage of The Dawn Treader - and it was a magical rock pool which turned everything that touched the waters into gold, including one, a relative of Narnia's nobility, who took a dive into the pool and turned into the most expensive skinny dip in history.