Your proficiency in unarmored defense increases to expert. While you are raging and unarmored, your skin transforms into a thick hide resembling your animal’s skin. You gain a +1 status bonus to AC instead of taking a –1 penalty to AC; if you have the greater juggernaut class feature, this status bonus increases to +2. The thickness of your hide gives you a Dexterity modifier cap to your AC of +3.
You transform into your animal. You gain the effects of the 3rd-level animal form spell except you use your own statistics, temporary Hit Points, and unarmed attacks instead of those granted by animal form. You also retain the constant abilities of your gear. If your animal is a frog, your tongue’s reach increases to 15 feet. Dismissing the transformation gains the rage trait.