Originally Posted by misjuevos
Stayed out of here till I saw the movie. Didn't want to know anything. Realized the rock monster from the trailer is korg or a homage to him. Was cool to see him, though he was grey.
Likely it was just one of Korg's brethren. They originally fought Thor during his first appearance so it's likely a homage to that. He dressed exactly like him though, a hint at a Planet Hulk film maybe?