Mjölnir is heavy. Like, way heavy. Know why Thor can lift it? Because he got hella swole off prancersizing. Here's proof. And this is that EveryDayThor seems a tad stiff when it comes to his form. Alas, not everyone can match the lady in the original video. Prancercise: A Fitness Workout with Thor! [EveryDayThor via The Mary Sue]