Talk:Kyuku Zuzu/@comment-34598988-20180716194551/@comment-2001:16B8:4635:EA00:8D81:4C54:37ED:1E76-20190126125044

I think it has a limit how tough it can become and that when Kyuku wore it had its maximum, since he was still able to speak.

Philip would turn into a human vegetable, while Renner would probably retain a normal level intelligence.