Ramrog is the captain of a Purifier ship under the command o Lord Votan. His ship is the most successful at it's job of destroying planets. He commands the Planet Pulverizer, a massive asteroid held together with a small black hole.
 
When Ramrog was ordered to destroy the Earth, he met resistance from Quasar, Beta Ray Bill and the Silver Surfer. Together they successfully destroyed the Planet Pulverizer. When Ramrog notified Lord Votan of his failure he was ordered to 'purify' himself. Ramrog initiated the self destruct on his ship, killing himself and all aboard.