[quote=@Asura]
<Snipped quote by Buddha>

In this case, I actually mean the plates of bone Kimmimaro had under his skin. It's never mentioned as a jutsu, so I'm unsure if it's just an innate thing which comes along with his KG.


[/quote]

That's definitely not a jutsu, just an innate ability. 

[@Masaki Haruna] Let me look later, playing a game of CSGO now. :lol