I feel you. The battle of the scythe users would be sick, but I feel like Kaido’s top subordinates are set up to be taken down by the SHs. Kidd battles Big Mom so it only makes sense for Killer to battle Big Moms only commander on Wano. If not Killer, then who would Smoothie fight? Smoothie was the only commander Oda brought to Wano for a reason, because she was the only one to not do anything in WCI. Killers the only guy that makes sense, especially if Smoothie ends up being the commander that Kidd injured. (Though I think it was Cracker.)