User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-4547001-20121211224812/@comment-184.38.85.131-20121212010549

I think Siliconera explains this weapon alittle bit better http://www.siliconera.com/2012/12/11/monster-hunter-4s-new-weapon-is-the-charge-axe/