Regular attacks will not hurt or affect him.
Ninjutsu attacks will not hurt him.
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So this is what happens when Itachi fanboys take a break...
He's not invulnerable. If he was, Asuma wouldn't have been able to cut his ear and decapitate him, he wouldn't be able to injure himself for his ritual and the paper tags wouldn't have blown him up.
Stop aruging against manga proof.
Asuma said himself he was invulnerable