Itachi didnt said that one requires tsukyomi to break tsukyomi. He said you need to be an uchiha. Also I didn't understand the amaterasu partONLY those capable of TSUKUYOMI can break TSUKUYOMI
KAMUI didn't counter AMATERATSU.. it must've been the chakra rods.. example.
FTG symbol is on Obito's skin.. Amateratsu keeps burning .. Kamui/phasing just takes u to another dimension .
Amateratsu would be taken to the other dimension with Obito's body parts.
Itachi can PUSH Amateratsu with force instantly .. like he did with Jiraiya's Toad Stomach.
it exploded on impact.
We've seen (manga) Obito underestimated Itachi and praised him at the same time.
who does that? Oro, Kabuto, Kakashi, Deidara... Itachi beat them all.
Obito was dam near in SHOCK when Sasuke showed Amateratsu.. he couldn't believe it. He panicked for a sec.
Underestimating Itachi results in defeat. :itachi: nice though.