Theory behind kinkaku team is wrong. It doesn't reduce damage output by 20% to enemies it hits. His own standard attack (in comparison to base version) deals reduced damage (so hits 3 targets but for 80% of regular standard damage). The same way, as some skillbroken chases can be triggered multiple times but deal reduced damage- see susanoo sasuke, sage naruto.

And whole thread comes down to the point- if you are faster. If you are faster, run edo itachi with shark bomb. Kakuzu will never have chakra, so no need to even bother with itachi kimono.

Any kakuzu team with edo itachi that relies only on earth main to generate chakra (so basically most of them) can attack regardless if you manage to pull off itachi barrier or not. initial 20chakra+ 40from itachi, then opponent edo itachi casts on anything, opponent ends up with 40 chakra so he can easily use standards. For this to work, they would have to have external chakra generation like anbu yamato/kimono konan/asuma wb/madara founder.

Whether kakuzu can attack at 40 chakra or 0 chakra it doesnt matter, he doesnt get buff yet. And edo itachis passive halves that damage. Unless power disparity is huge, you will live through it anyway. And if power disparity is huge, that means you have lower secondary stats so you wont be able to do anything anyway and lose.