Complex sentence: The comic, created by Jim Starlin, was during most of its run, lasting 26 issues under Epic, was then published by First Comics, who carried it for 38 more issues, for a total of 64 issues.
Split into simpler sentences: The comic, created by Jim Starlin, was during most of its run. Epic published 26 issues, after which it was published by First Comics who carried it for 38 more issues, for a total of 64 issues.