The only fodder here I see is you. U_UDisprove my claim, fodder.
Yes. And that cooperation was when Kabuto had gathered intel on Itachi and Uchiha techs in general beforehand, they were fighting in a cramped cave so the Uchiha bros couldn't go full susano'o, the cave reacted to Kabuto's DSM chakra, and he pretty much had all the location advantages he needed. Then, Itachi felt the need to protect Sasuke and was slightly worried throughout the duration of the fight. I'd actually say that Edo Itachi is above DSM Kabuto by a very narrow margin and Sasuke is obviously tiers above both of them.The only fodder here I see is you. U_U
This shouldn't even be a question. Itachi had to cooperate with Sasuke to trap Kabuto into Izanami. ON KABUTO. Now, Obito JJ. & Madara JJ. are way above Kabuto (DSM) waaaay above. They could speed blitz Itachi before he says I want to solo. Lmao.