Norde has the Invulnerable Rager Archetype as well, without the drawbacks, per the creation rules.
He is "Ulfen" per se, as that is the "Norse" race in Pathfinder. I'm not sure what the equivalent race/language is in FR.
Invulnerable Rager:
Invulnerability (Ex): At 2nd level, the invulnerable rager gains DR/— equal to half her barbarian level. This damage reduction is doubled against nonlethal damage. This ability replaces uncanny dodge, improved uncanny dodge, and damage reduction.
DR 2/-
Extreme Endurance (Ex): At 3rd level, the invulnerable rager is inured to either hot or cold climate effects (choose one) as if using endure elements. In addition, the barbarian gains 1 point of fire or cold resistance for every three levels beyond 3rd. This ability replaces trap sense.
Fire and Cold Resistance 1 at this point, in addition to hot and cold climate resistance.
Norde 5 Not Raging:
Norde
Human (Ulfen) unchained barbarian 5 (Pathfinder Unchained 8)
N Medium humanoid (human)
Init +3; Senses Perception +9
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Defense
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AC 21, touch 15, flat-footed 17 (+6 armor, +3 Dex, +1 dodge, +1 trait)
hp 60 (5d12+20)
Fort +7, Ref +4, Will +2
Defensive Abilities danger sense +1, improved uncanny dodge
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Offense
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Speed 40 ft. (30 ft. in armor)
Melee +1 adamantine greataxe +12 (1d12+15/×3) or
. . boarding axe +9 (1d6+9/×3)
Special Attacks rage (15 rounds/day), rage powers (lesser celestial totem, low-light vision, night vision, no escape)
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Statistics
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Str 20, Dex 16, Con 16, Int 14, Wis 13, Cha 14
Base Atk +5; CMB +8; CMD 24
Feats Combat Expertise, Deadly Aim, Dodge, Extra Rage Power[APG], Extra Rage Power[APG], Furious Focus[APG], Power Attack, Spring Attack, Weapon Focus, Whirlwind Attack
Traits defender of the society, talented, weapon training
Skills Acrobatics +7, Climb +9, Craft (ships) +8, Handle Animal +10, Intimidate +10, Knowledge (nature) +10, Perception +9, Perform (string instruments) +5, Ride +7, Survival +9, Swim +9
Languages Common, Dwarven, Giant, Skald
SQ fast movement, finesse weapon attack attribute
Other Gear breastplate, +1 adamantine greataxe, boarding axe, boots of the elven spirit, swarmbane clasp[UE], backpack, belt pouch, blanket[APG], flint and steel, hemp rope (50 ft.), masterwork Lute, pot, soap, torch (10), trail rations (5), waterskin, 565 gp
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Special Abilities
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Celestial Totem, Lesser (Su) Cure spells heal CL extra Hp, non spell magical healing does class level extra.
Combat Expertise +/-2 Bonus to AC in exchange for an equal penalty to attack.
Danger Sense +1 (Ex) +1 bonus on reflex saves and AC against traps.
Deadly Aim -2/+4 Trade a penalty to ranged attacks for a bonus to ranged damage.
Fast Movement +10 (Ex) +10 feet to speed, unless heavily loaded.
Finesse Weapon Attack Attribute Finesse weapons use Strength on attack rolls.
Furious Focus If you are wielding a weapon in two hands, ignore the penalty for your first attack of each turn.
Improved Uncanny Dodge (Lv >= 9) (Ex) Retain DEX bonus to AC when flat-footed. You cannot be flanked unless the attacker is Level 9+.
Low-Light Vision (Ex) While raging, you gain low-light vision.
Night Vision (Ex) While raging, gain darkvision 60 ft or extend range of existing DV by the same.
No Escape (Ex) As an imm action, move up to 2x speed to follow withdrawing foe.
Power Attack -2/+4 You can subtract from your attack roll to add to your damage.
Rage (Unchained, 15 rounds/day) (Ex) As a free action, gain temp hp, bonus to melee att/dam, thrown dam, will saves, but AC penalty and limited actions. 1 min fatigue when ended.
Spring Attack You can move - attack - move when attacking with a melee weapon.
Weapon Focus (Axes) Choose one weapon group. You become better at using that type of weapon.
Prerequisites: base attack bonus +1.
Benefit: You gain a +1 bonus on all attack rolls you make using weapons from the selected group. The bonus only applies
Whirlwind Attack Instead of making a full attack, you attack all foes in reach.
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Background:
A pull, a compulsion, a need to serve, to follow the sound and serve its master. Squeezed out of nothingness and into somethingness. He felt the urge to fight, to smash, to serve. Not smash the one with the horn. That one was friend, master. Not smash the other two like himself, they were friends too. No, smash the others, creatures. No idea what the creatures are, but they must be smashed. He smashed, he smashed again. He got hurt. The creatures took down his hornbrothers. He smashed again. The creatures attacked the hornmaster. The hornmaster fell. She dropped the horn. She was bleeding. The horn got smashed. A great pain. A stretching, a pull towards the broken horn. The pull stopped. He smashed more, until there were no more to smash. He fell, exhausted.
He awoke. He searched the bodies. The hornmaster was dead. He took her things. He had some things of his own. The creatures had no things. His hornbrothers had disappeared.
He wandered. He pondered. North! Norde. Home.
He met people. They asked his name. He understood them. He said the first thing that came to his lips, "Norde."
He had no other answers. No memories before the summoning. No memories of his hornbrothers or the hornmaster.
He had primal urges only, food, sleep, survive, kill. Of good and evil, of law and chaos, he did not even consider. He was empty inside. He was a story with no beginning, and hardly a middle, but surely an end, someday.
Personality:
Norde is a virtual "babe in the woods." Innocent, lost, seeking friends. If he was to fall in with the wrong crowd, he could become a powerful force for evil. However, with the right grooming, he could become an equally strong force for good.
Quick to trust, at this point, since he hasn't been burned by fallible humans quite yet, he seeks to find a new band of hornbrothers.
He is inherently affable, as long as he is well fed, and well watered, if you know what I mean!
The Concept:
Norde is as simple to describe as anything in this game. He is a Viking Barbarian summoned with a Horn of Valhalla. While summoned, the horn was broken, and he was stranded. A man with no history, no morality. No self except some very basic feelings. Norde is a very naive individual. Not stupid, but without years of life experience, he is very naive and overly honest.