Marco's ability is "magical" compared to Croc's which has fonudations in physics (stretched out but nevermind). Since Marco's flames can't burn anything, why would you think they would have the same weakness as normal flames?
Of course, throwing him into the water would harm him just as any other DF user.
But yeah, I'm sure his body cannot renegerate from severe injuries, such as beheading and being cut into pieces.
he had half of his face blowed away and he grinned over that in that case i think he is like a logia
Got shot in the head. It's not the same as losing the entire head or getting your torso severed from your legs or having someone turn you into 2 symetrical halves of your former selves.
A crushing defeat indeed haha