User blog comment:IamJakuhoRaikoben/Chapter 361: The Two Bombs, Review./@comment-24066070-20131122224003/@comment-7418318-20131123102745

I just re-read the chapter and noticed a one line in particular.

"Oh, something interesting just popped into my head..."

That made me think he's a bit of an air-head and just didn't think about using that spell/curse/ability/technique (whatever you want to call it) on Fairy Tail before.