User blog comment:Fintin/Revisiting Barty's DF fruit/@comment-178.128.75.0-20130508205809/@comment-7614831-20130508212249

Interesting points. Didn't think about the sword's devil fruit potential, and the block idea suggests something other than a repelling fruit. After all, there is a Door Door Fruit which can use the air, so why not a Wall Wall fruit used in the same fashion?