again
it has been established that zoro doesn't need so much armament to cut kaido, all he deeded was to unleash enma a
bit more
after doing that zoro had no problem cutting kaido's hide, with casual attack that's meant for fodder control non less aka tatsumaki, and he didn't even wheeze, he cut kaido and continued on protecting luffy without showing a sign of exhaustion, and on top of that it was the second time kaido admitted that an attack hurt him after luffy's red rock
in regards to flying dragon blaze, zoro unleashed enma so much that he was actually wheezing after the attack, only big mom knew how devastating that attack would've been like it's something very dangerous
from that point kaido and big mom started taking the supernovas more seriously, zoro's attack made big mom admit that she and kaido have underestimated the supernovas
if that attack had connected it'll be kaido's head that fall in the sea instead of the skull horn