Board Thread:Naruto Discussions/@comment-38792431-20200226192508/@comment-732150-20200227185959

We know that, and the Fourth Raikage can resist Heavenly Transfer without the LR Armor. The example Squinty97 is talking about is Edo 3rd Raikage. Both had that, and HeiwaSozo's point of that still fails because that isn't a jutsu. The closest thing to actual metal skin in the manga is Kakuzu's Earth Spear.