Promo4 part mini-series from writer Gary Cohn and artist Ron Randall, coming out of the back-up feature first seen in The Warlord (1976) issues #63-88.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/conqueror-of-the-barren-earth/4050-3440/).
