User blog comment:ImperiexSeed/Michael or Death, who's stronger?/@comment-3481504-20120428180525/@comment-3481504-20120428181938

Your disagreements are astonishing.

Cas even admitted, "it was nearly impossible", and was only able to bring Sam's physical body back, while Death was able to pry Sam's soul from Michael and Lucifer.

Yeah, practically. The word doesn't mean completely as you seemingly assume; it means almost. Oh, he was petrified of Death, he even left before they could fight.