After looking at hundreds of comic book covers, it becomes quickly apparent that not every cover is 100% original. Whether done intentionally or even underhandedly, there's something about uncovering these "swipes" that adds a new element of fun to reading and collecting comics. The first appearance of Demolitia pays homage to the first appearance of Bloodsport.
Superman vol. II #4 Superman vol. II #4
April 1987
John Byrne
 Action Comics #718 Action Comics #718
February 1996
Kieron Dwyer
On Ebay: Superman On AtomicAvenue: Superman