Board Thread:Naruto Discussions/@comment-38812954-20190924074243/@comment-9782468-20190924174730

@Frwt Their clans were warring and the battles cost the life of Madara's brother. They didn't want to kill each other, but they went all out on each other.

Personally, I think his ability might've just been his ability to master Susanoo to the point that he did. He was able to us PS with just his EMS. No other user managed that; they had to be empowered by Six Paths chakra to achieve it. Madara was the only exception.

Also regarding your earlier question about Tsukuyomi, Jinjuuriki are not immune to it. All the damage is done to them in such a short time that their Tailed Beast doesn't have enough time to break them out. Only powerful users of the Sharingan (MS most likely) have a chance at breaking out, and even then it's not guaranteed.