Favored Class: Unchained Barbarian | +1 HP/level
Ability Score Increase (4th lvl): +1 Dex
Invulnerable Rager Archetype
Fast Movement 10': A barbarian's base speed is faster than the norm for her race by 10 feet. This benefit applies only when she is wearing no armor, light armor, or medium armor, and not carrying a heavy load. Apply this bonus before modifying the barbarian's speed because of any load carried or armor worn. This bonus stacks with any other bonuses to the barbarian's base speed.
Rage (Unchained): A barbarian can call upon inner reserves of strength and ferocity, granting her additional combat prowess. At 1st level, a barbarian can rage for a number of rounds per day equal to 4 + her Constitution modifier. For each level after 1st she possesses, the barbarian can rage for 2 additional rounds per day. Temporary increases to Constitution, such as that gained from bear's endurance, do not increase the total number of rounds that a barbarian can rage per day. A barbarian can enter a rage as a free action. The total number of rounds of rage per day is renewed after resting for 8 hours, although these hours need not be consecutive.
While in a rage, a barbarian gains a +2 bonus on melee attack rolls, melee damage rolls, thrown weapon damage rolls, and Will saving throws. In addition, she takes a –2 penalty to Armor Class. She also gains 2 temporary hit points per Hit Die. These temporary hit points are lost first when a character takes damage, disappear when the rage ends, and are not replenished if the barbarian enters a rage again within 1 minute of her previous rage. While in a rage, a barbarian cannot use any Charisma-, Dexterity-, or Intelligence-based skill (except Acrobatics, Fly, Intimidate, and Ride) or any ability that requires patience or concentration (such as spellcasting).
A barbarian can end her rage as a free action, and is fatigued for 1 minute after a rage ends. A barbarian can't enter a new rage while fatigued or exhausted, but can otherwise enter a rage multiple times per day. If a barbarian falls unconscious, her rage immediately ends.
Damage Reduction: 3/-
Damage Reduction: 6/lethal
Power Stance +2 Gain a +2 to melee damage and thrown weapon damage while taking the Power Stance during Rage.
Guardian Stance +2 Gain a +2 dodge bonus to AC while taking Guardian Stance during Rage.
Extreme Cold Endurance: The Invulnerable Rager is inured to cold climate effects as if using Endure Elements. In addition the barbarian gains 1 point of Cold Resistance for every level beyond 3rd level.
Cold Resistance: 1
Smasher: Whenever making a Sunder combat maneuver, ignore hardness equal to barbarian level.