User blog comment:Xilinoc/Ch. 578 (I'm not gonna spoil the title like Schiffy did)/@comment-29183117-20140423143056

After Gremmy said "I'll show you how strong I am!" I could only think "incoming Vollstandig". Then he died. Wut. Definitely unexpected.

Also, the way I read it it seemed more like Gremmy imagined himself dying to Kenpachi, so the wounds were according to how he imagined it happening. The same thing almost happened a couple chapters ago, and the reverse happened when he imagined himself healed. Kenny's reaction to it was still golden though.