Legion of Super-Heroes in the 31st Century #18
an issue of Legion of Super-Heroes in the 31st Century by DC Comics
Issue description
Computer chaos hits New Metropolis, crippling the high-tech city and throwing the Legion into the Dark Ages as communications crash, starships collide and magic takes over! Brainiac 5 has to prove that science is stronger than sorcery...but will he have to give up his place in the Legion to do it?