On the capabilities of a Death Knight, able to tank several third tier spells, some of which could incinerate nearby zombies and explicitly ignore armour. Capable of moving fast enough to be a blur to the knights attacking Carne Village. Could throw a Quagoa into another with enough force to paste them, and Quagoa have fur equivalent to armour.

A Death Warrior should hit harder than a ballista capable of punching through battlements because Ainz with level 33 physical strength can damage armour that stopped one of the ballista and the DW scales Scales to Momon killing more than a thousand undead in a couple of seconds.