This is the comic, but can't find a price for it online.
Not surprised that you had trouble finding this! It's actually listed in Overstreet Comic Book Price Guide under First Issue Special #11.
This is a DC Comics tryout series from 1975-76. The only two issues of any real interest are First Issue Special #8, origin and first appearance of The Warlord, and First Issue Special #13, return of the New Gods.
If you have vintage Batman comics, and want to know how much you can sell them for, check out this Batman comic book price guide. We have record sales and minimum values for issue #1 through #100. Con…