For those of you who are following BPRD, in the newest Return of the Master arc, an old friend of the bureau's returns and they asked me to design him for his newest incarnation.
Being punched to death would certainly be a more unique way to die than being eviscerated. So i vote no for claws, yes for fists. Also, if the master could use tools and weapons with his hands then that would make him even more frightening: He could hold an artillery shell in his hand, fire the shell using his electricity, and then toss the shell casing aside and pick up another.