BROKEN BONES >>>>>>>>>>>>>>> a little scar
Kaido's durability >>>>>>>>>>> Big Mom's durability. Big Mom body has been described to be a iron balloon. Mr. 1 has more adorable body than her. His body is steal.
Kaido jumped off skipea and was fine. Big Mom tripped on the ground and scraped and bloodied her knee. As we can see there is a big difference between their durability. Kaido took Luffy's G4 attacks like there were nothing. Big Mom used blackened haki to block Luffy's G4 attack.
Damaging Kaid is harder than damaging. Scarring Kaido is even harder. That why it's a feat only one other character has achieved in the manga over 20 years ago.
Zoro with broken bones scarring Kaido >>> Law and Kid breaking Big Mom bones thanks to their combined effort.
They don't need to hurt king. They have already hurt his boss kaido.
Actually killer is more than enough for king. Killer is internal damage moves that will fuck king up. He is agile and smart he will figure out fire thingy and behead king
Zoro hurt and scarred Kaido, King's boss, and his attacks at first were completely ineffective. Even after ACoC King didn't just drop from one 3 sword large ACoC andCoA attacks.
Killet attacks would be completely ineffective against King. King is just to fast, power agile and strong for Killer.
Kid and Law fan base has started overrating Big Mom's durability again. Somehow she has become much more durable than Kaido. She's not. What they did against her is impressive but that doesn't mean you can start downplaying his durability to make their attack look more impressive.