Blok is a fictional character, a superhero in the 30th century of the DC Comics uiniverse. He has a massive, stony body possessed of incredible strength and endurance.
Blok first appeared as a member of the League of Super-Assassins , where he was manipulated by Tharok into attacking the Legion of Super-Heroes. When he learned that the Legionnaires were not his enemies, he turned on the Assassins and eventually joined the Legion.