Maybe you should use a better translation, than some shoddy fan one to suit your narrative like you always do.
And this is what it looks like when it is used for offensive purposes.
So I ask you again, how the hell does Haki exploding out of someone's palm translate into making their blade sharper so they can pierce Kaido?

And this is what it looks like when it is used for offensive purposes.

So I ask you again, how the hell does Haki exploding out of someone's palm translate into making their blade sharper so they can pierce Kaido?