Given the Shaggy Man's size, and that Batman looks so stiff, this cover always looked like The Shaggy Man was playing with Batman and Flash action figures to me. Is it just me?
The Story: "The Super-Struggle Against The Shaggy Man!" by Gardner Fox, Mike Sekowsky, Frank Giacoia, and Joe Giella.
When the JLA determine that the Shaggy Man is unbeatable(c'mon, unbeatable? Really?) they trap him underground with a rock creature(and a duplicate Shaggy Man--don't ask) so they will battle one another forever. Um, good, humane plan, Justice Leaguers!
Roll Call: Batman, Wonder Woman, Flash, Green Arrow, Atom, Hawkman
Notable Moments: Debut of the Shaggy Man, one of the JLA's goofiest, yet long-lasting, bad guys.