I remember that from an issue of House of Mystery that I used to have. How I had that issue, I'll never know but the ad was kind of cool.
Flipping through all the old comic books (Marvel Star Wars, mainly) that I've recently bought, it's interesting to see all of the old D&D ads that they used to have. There's also one where a frickin' DRAGON surrenders and gives up his hoard upon seeing the fighter. What level was that guy?!