Balthazar von Zeppenbaum. An empoverished noble desperate enough to seek fortune in Blood Bowl. He then discovered that he liked bashing peoples faces in with spiked knuckles. Despite a nigh-psychopathic attitude on the field he tries to stay classy and elegant.
I don't know how the crunchy part of Blood Bowl works, just make him into a solid bruiser type.
I'm all for the suggested name and motto.