Kaido has fought a bunch of people and taken a lot of damage already
Like
-Get cut by Kiku in the hand
-Get pierced together by Ashura,Kinemon,Denjiro in the stomach(Attack Sunachii)
-Crush with full force into the ground
-Get cut in mouth by Kinemon Foxfire Style Flamerend
-Take a attack from Nekomamushi´s Crimson Cat Dance
-Get cut by Kawamatsu´s River of sea
-Get pierced by Inuarashi´s Canine Scourge
-Get cut by Okiku´s Fallen Snow Scythes
-Get cut by Izo´s Slicing rounds
-Take his own boro breath by Raizo counter attack:Scrolling Jutsu Restoration
-Get cut by a combinate attack Paradise Totsuka(Group attack of Kinemon,Denjiro,Ashura and Inuarashi)
-Get pierced by Denjiro in the left body side
-Get punched by Luffy G3 Red Roc(Adv penetration haki)
- Take damage by Zoro´s Purgatory Onigiri
- Take damage by Killer´s Beheading Claws
- Get punched by Luffy G4 Kong gun
- Get squash by Kidßs Punk Vise
- Get attacked by Law Takt via throwing sharp stones at him
- Get punched by Luffy Kong Rifle
- Get hit by Kid Gibson slam
- Take Law´s Gammaknife who was pointed against his heart
- Tank Killer´s Sonic Scythe(internal damage)
- Get kicked by Luffy rio schneider
- Get punched by Luffy Kong Gatling
- Get cut by Zoro Tatsumaki
- Infection shoot by Law
-Get a hit by Law infection shoot
-Get cut by Zoro adv CoC Ashura
-Get punched by Luffy adv CoC+adv CoA in stomach
-Get punched uppercut by Luffy adv CoC+adv CoA
-Tank Yamato adv CoC Thunder bague
-Tank Yamato Himoro Giri
-Get cut by Yamato slice attack
-Get punched by Luffy Snakeman adv CoC Jet Culverin
-In combo he also tank Yamato adv CoC White Snake Rush who attack in a combo with Luffy.
-Luffy's COC punch and G3 attack
So far Kaido tank over 37 Attacks(take in mind Sunachii was a combo attack by all Scabbards, same as a Kong Gatling who hit him multiple times)+(Lot of adv CoC attacks).
--Plus luffy willl get some powerup in g5/awakening so its fine
