Amazing Heroes 73 (1985)
This issue of Amazing Heroes has everything you need to know about The Eternals, but, you can gather that from the cover.
What you couldn’t have known was that Swamp Thing indulges on fertilizer Bonbons!
Almost as scandalous as when Swampy dropped in on the Crisis cover. Which just happens to be in this issue of Amazing Heroes 73!
Certainly one of his smallest appearances, although there are smaller ones out there.
Along with an antagonistic Darkseid
It was bound to happen, Batman