Stonebark

In your past something happened to your body, causing your body to take on some form of petrification; causing your physical structure to become hardier and less susceptible to forms of damage.  It also has made your movements more stiff and rigid, slowing your movement speed by 5 feet.

• Increase your Constitutionor Strength score by 1 to a maximum of 20.
• Your petrified bark increases your natural armor to 16 + your dexterity modifier and you are now resistant to normal bludgeoning damage.
• Your bark has also removed your vulnerability to fire damage.