Board Thread:Theories and Speculation/@comment-45444155-20200806213256/@comment-32685487-20200815195034

What Kaguya created wasn't exactly the same as a normal TSB, she created something called the Expansive Truth Seeking Ball and it took a lot from her apparently. Normal TSB can only be created with Six Paths Sage Chakra via via being a TTJ or having Six Paths Sage Mode. Whether he used Zetsu or not he still needed SPS to turn him into a makeshift TSB in order to copy the properties and powers of one. He then used Zetsu as a TSB to block Madara's TSB successfully.

https://naruto.fandom.com/wiki/Expansive_Truth-Seeking_Ball