Ancient Scales

Your many fights have hardened your scales, increasing your resistance to incoming damage. You have uncanny ability to shrug off attacks. You gain the following benefits:

• Increase your Strength, Dexterity, or Wisdom score by 1, to a maximum of 20.
• When you're taking advantage of your natural armor, bludgeoning, piercing, and slashing damage that you take from nonmagical weapons is reduced by 3.
• Your hide is ridiculously thick,  like that of a crocodile. You gain a +1 bonus to AC when you're not wearing any armor.