Action Comics #887 (1938)

Written by GREG RUCKA & ERIC TRAUTMANN
Co-feature written by JAMES ROBINSON & GREG RUCKA
Art by PERE PÉREZ; Co-feature art by CAFU
Cover by KALMAN ANDRASOFSZKY
In this corner - the already beaten, exhausted and bruised Nightwing & Flamebird! And in this corner - the reincarnation of the all-powerful Kryptonian sun god Rao! Place your bets! (Smart money's on the sun god.)
And in the co-feature, Captain Atom has to answer for his past sins by fighting the entire Justice League of America single-handedly!