House of Mystery (1951-) #302
Two odd things of note about this particular issue. First, the cover art does not match the interior stories at all. Secondly, you’ll have to get a physical copy of this comic to read the letter from Todd McFarlane published in the letter’s page (Cain’s Mail Room) of this issue.
We appreciate the head’s up, @TateHemlock, thank you! Making note of what you’ve reported now!