Board Thread:Theories and Speculation/@comment-36512555-20200202084241/@comment-32685487-20200203204301

Itachi's novel feat was never contradicted or disregarded and in the novel he fully intended to use Tsukuyomi to kill an Uchiha, whereas we have never seen him intending to kill with Tsukuyomi in the series because on the times he did use it he specifically did not want to kill anyone. So giving that to Itachi is fine, what people don't mention is that although that Tsukuyomi was unbreakable by a 3 tomoe using Uchiha and it was capable of killing it also zapped Itachi of more chakra than a normal Tsukuyomi which makes sense as he must have had to put more effort and chakra into it. So giving Itachi that for a feat is just fine. Itachi also has the ability to enhance his taijutsu with chakra similarly to Sakura