Skaldi Bonehammer

"The mighty Trollkin warrior Skaldi Bonehammer is a champion among the champions of the bitter North, his thirst for glory and carnage an infectious tide that spreads like wildfire among the Trollkin he leads. His thirst for battle is legendary, and his relentless fighting style combines bone-cracking strength and a fearsome swiftness that leaves allies in awe and enemies broken and bleeding."

I kinda imagined him as the Bluto Blutarsky of the Iron Kingdoms...