Look: I'm fifty-nine years of age and have "Old Man Toenails"-aka thick, heavy, hard and dull gray in color due to the televised "Dermatophyte" Infection...and I'm reactive to the medicine that can cure the situation.
Why the "Confession"?. Because I can put a very sharp edge on my toenails-or Foot Claws and really do some damage with them!
I have to cut them with Wire-cutters, and use a metal file on them to shape them, and even then, getting four wearings out of a pair of socks is unusual. My feet eat socks!
I let my toe-claws grow enough to point them and edge them and I can gouge plaster out of the walls, scrape deep gouges into pine 2X4's and no doubt could inflict some real damage on someone, should I use them as weapons.
Now, If one human can do this with their nails, imagine what a Werewolf could do with deliberately evolved claws-not thick toenails. I suspect that a Werewolf would have flat-wide human type claws, not the rounded claws you find on canines-simply because it takes less energy to make them that way as opposed to re-shaping the nailbed to form canine claws.
Plus: the flat-wide structure can be pointed (like I've done) and sharpened naturally by growth as opposed to files and wirecutters ( and the occasional Dremel). Additionally- these claws would be bedded far more strongly than canine claws, and thus more capable of doing some real damage.
Human nails (claws, actually-since they're the same stuff, just differently shaped) naturally grow to rounded points and are capable of keeping a cutting edge all on their own. So why would a Werewolf waste energy as they shift remaking their nails, unless there is energy to spare (curse-divinity-or magic) for the task? Seems to me that they'd save that for extra muscles between their ears or longer teeth.
Anyway, that's my two-bit's worth...
