Does this chapter prove that you don't need AdvCoC to beat King because KOH that finished off King turned out to be not AdvCoC attack? Make up your mind Oda which attack is AdvCoC which attack is not AdvCoC
My take from the start has been
CoO - Defends the body, detects attacks.
CoA - Attacks the body, physical attacks.
CoC - Attacks the soul, internal attacks.
Oda has been very crap at making a good distinction between CoA and CoC. The best route would be to clearly separate them by how they are drawn and also the use. If we imagine there being a HP bar of 100 for the physical body and another HP bar of 100 for the soul then both can be of use.
If you manage to deplete the other guys Soul HP to 0 by using CoC they faint.
If you manage to injure the other guys Body HP to 0 by using CoA they become immobilized.
Advanced use would, I suppose, be:
You could also use CoO to predict the future and to make your body move on its own by Ultra Instinct.
You could also use CoA to protect your organs from within and not only cover your body for external use.
You could also use CoC (Qi/Chi) to form a barrier in front of your body for external use.