User blog comment:Pacifista15/Explosive Punches/@comment-3075024-20111028134734

'''No to me the explosion in the back on Hordy looks like it is caused from the power of Haki and air. Like air rumbling. Like Comet, when a comet is falling, it scratches with the air around it creating fire. The only difference is that here the fire os behind Hordy so that means its a trick of the Haki that Luffy used.'''