Board Thread:Questions and Answers/@comment-918732-20160414155022/@comment-1257201-20161005205202

No (as far as I know).

Hint: It was in the 1980s and pre-Crisis. Both "X" and "Hero" are costumed heroes and are household names. (Thus Lois Lane is ruled out, because even if she donned a costume from time to time, she doesn't have a costumed identity that's a household name.) I found it even more suprrising given that "X" is a costumed hero, since usually DC heroes trust each other with their identities. And this event is displayed on the front cover of the comic containing this tale!