User blog comment:B214/Chapter 433 & 434 in a nutshell/@comment-5303512-20150511130513/@comment-1359322-20150511130907

If he was using a mere Iron Fist then yes, but since he went and said the name Fire Dragon Kings Crumbling/Destruction Fist and even mentioned Igneel's flame, to me there's no Nakama logic, especially if Natsu took 1 year away to train.