Stone Armor

Stone Armor is a defensive technique that turns the user's body into living rock. Fudo channels earth chakra through himself and literally absorbs the properties of stone, causing his skin to be covered with a transparent armor invisible to the eye. It can only be noticed when light falls on it. Such armor dampens any blunt blows as if they struck a rock, and makes the user himself unnaturally strong: he breaks bonds and delivers devastating strikes. Since the technique constantly draws power from the earth, after activation not a drop of chakra is spent on it, but to maintain it one must stand on stone ground.