Here's a wonderful early collaboration between Jan Strnad & Richard Corben from the 3rd issue of a short lived anthology book called Fantagor, published by Last Gasp Eco Funnies in 1972. It feels like a prologue for a larger story, and you end it really wanting to see more of both heroes & villains. It could almost be, in fact, a companion piece to Corben's adaptation of Harlan Ellison's A Boy And His Dog, or would fit nicely in Creepy or Eerie.
Marvel Team-Up # 17
4 hours ago