User blog comment:BlackWizardZeref/Fairy Tail Chapter 418: The Challenger Review & Commentary/@comment-82.81.240.22-20150203121315/@comment-25638000-20150203203554

@BlackWizardZeref My bet: Etherius Natsu Dragneel (hollowfication style, he loses control and all, as result we got Frosch killed).