Dean getting his Braveheart moment and using the speech from the movie was icing on the cake of a highly engaging episode. If anyone ever asks you why you can't stop watching Supernatural, just show them this one moment and walk away. Mic drop!
Dean screaming at a Sam, who had no soul, to fight the fairies is one of the brightest moments ever to grace Supernatural. Dean didn't even care how crazy he appeared, he just wanted to get those darn fairies.