User blog comment:IamJakuhoRaikoben/Chapter 294: Battle of the Dragon Slayers, Review./@comment-5249538-20120804123227/@comment-4829046-20120804123658

uh...Are you sure you read the chapter? They used Dragon Force in the last page of the chapter. The mode Natsu blocked was "Drive" Sting uses the element of light. Light and Darkness = White and Shadow. This is just a guess.