Well, this guy's nothing like that...
Rex's premiere tale from Warren's 1984 #4 (1978) gives us all the basic elements of the tales to come.
A big, strong, not-too-swift hero and his team along with an assortment of supernatural and super-science-based enemies who are only slightly more competent.
Written by regular Warren contributor Jim Stenstrum, and illustrated by Abel Laxamana, who spent the late 1970s-early 1980s illustrating for Warren, left comics to go into animation, then popped up again in the late 1990s-early 2000s, doing superhero and, oddly enough, Simpsons comics!
Rex will return next week with another snarky tale.