Board Thread:Versus Debates/@comment-30323490-20180607192958/@comment-34194151-20180727215948

@LoneNinja, he can't turn into crows i agree, but remember substitution when done correctly basically creates an optical illusion. Sakura looked like she was turning into logs. I don't think it was ever explained how that version of substitution worked, but I think Itachi does it so well, due to his handseal speed, that Kabuto even as Sage didn't notice him cast substitution when he was doing it.