Good eye.  Magog, as he was created for Kingdom Come, was an intentional parody of the hyper-violent characters of the 90s.  He bore many of the visual trademarks of the era: excessive pouches, metallic limbs, guns, knives, etc. 
 
But most prominent of all were Magog's golden horns, designed to suggest that he was a 'false idol' compared to the earlier superheroes like Superman and Wonder Woman.  And while it wasn't Ross and Waid's original intention, he ultimately became a more sympathetic character towards the end of the series.  In the final issue, he saves the life of Tokyo Rose and discards his helmet.

MrMiracle beat me to the punch, and he said it much better than I ever could.