Primal Instincts

Totemic Rage

While raging, you also have resistance to acid, cold, fire, lightning, poison and thunder damage.

Rage Power: Totemic Rage

Starting at 11th level, when you take acid, cold, fire, lightning, poison or thunder damage, you can use your reaction to become immune to the triggering damage until the beginning of your next turn. You can use this ability once per rage.