Superboy #211 (1975)

Starring the Legion of Super-Heroes

“The Ultimate Revenge” Written by Jim Shooter, art by Mike Grell.  Element Lad tracks Roxxas to Trom and plans to execute him, but Chemical King prevents him from making the ultimate mistake.

“The Legion's Lost Home” Written by Cary Bates, art by Mike Grell. Two imposter Legionnaires ransack the old Legion clubhouse to find a gem they hid years ago, but they run into the Legion of Substitute-Heroes who have come to claim the headquarters and make it their own.

Cover art by Mike Grell. Good condition.