Will that make Kaidou vulnerable
or will that make Hawlings invulnerable?
I doubt that the doll has the same physical stats then the original, moreover Kaidou most likely also is a haki monster, which might be a huge part of his overall power and i doubt that Haki can be transfered into the dolls.
It could be a contract. All Hawkings gang-members seem to be aware of his ability and are not afraid of taking the damage. So Hawking must have made an agreement of some kind with them.. I am just wondering what if could make a doll-contract with anyone. Someone like Big-mom or Kaudou. These guys are nearly indestructible. I am surprised that Hawking didn't form this contract already with Kaidou, given the fact that he is under Kaido's wing anyway. It means that both sides must be in agreement. Or maybe Hawking needs to place a hex-bag into a person't pocket, like witches in Supernatural TV-show do.
I believe the reason why Hawkins is with Kaidou now, is simply that he was faced with a decision, either get imprisoned and defeated, with mayhaps permanent results (i.e. Kidd loosing an arm vs BMpirates), get severely beaten or become and underling. I mean i would claim being an underling if those r my options
Maybe he already did it with Kaido. And that's why he's so carefree, bc his last doll standing is Kaido's so he knows he will be nearly inmortal when he reaches that point. And is not using it yet bc he has a plan and this is a part of it. He might have done it without kaido knowing it and he'll reveal it in the final fight against him
Honestly it would be bad if Kaidou just would be this stupid. I mean ok he may have a deathwish in generel, but i would claim he wants to see the ultimate war through first in order to have some battle fun then him wishing to die immidieatly. BTW what would Hawkins stop from already killing Kaidou if he has him as a doll already?