I'm curious to see the way Oda will explain King's lunarian traits.
Zoro questioning his blood, if he is a Fishman, giant to wonder where his power comes from suggest he is using some particular lunarian trait and can't simply be durability considering Zoro can hurt even Kaido with Enma, so what particular battle trait Zoro is referencing to could be interesting to know
And it makes sense that a lunarian race could have a special trait. Now what's just left to know is what exactly that trait is