Law can cut his body with room which has nothing to do with environment. Magma won't hit Law since Law could dodge Kaido invisible flying slash and Jackpot won't trigger too because Law won't stab king's stomach. King cannot damage Queen who was bled by fucking Chopper
Who cares if Law can pierce King's body he still can't cause him any damage. King can survive concussion attacks without any damage.
King can damage Queen, stop the BS. Queen was bitching because King attack hurt him.
That's why King said he wished it was Queen's neck. That statement would have been pointless if his attack didn't cause Queen damage.