When nothing happened to him, he didn't even drop to one knee just took it like a champ and the proceeded to neg Zolo and Law with Bagua until Luffy woke up. Zolo did nothing to Kaido so that's not even a feat. Did he even move an inch? Getting cut by Enma is a feat? Oden did that 20 years back and nearly defeated Kaido. Here, Kaido neg diffed asura and then negged Zolo and Law. Zolo didn't wake up until Chopper treated and Mink Medicine worked.