Ok, so... let's try this. I will post the character sheet, so we can see what should be changed if its necessary to make it better for both.
But first, a very short summary about his past (im able to do summaries from time to time, really):
- His father sinned with a huldra while her wife was pregnant, so when his son was born he with huldra blood.
- They raise it, but as he ages, his faerie blood turns more and more obvious, so he must leave his village at being just a very young man.
- He lives for a long time at the sides of civilization, living a lot of time into the forests but going to villages when he need something that he cannot find into the wilderness.
- Things happens and he ends being cursed with lycanthropy (later he will discover that from then, he can also talk with some animals), so he ends wandering deep into the dark forests of Swabia and griefing about the unfairness that he has to pay for his father sins and strengthening his ideals of seeking justice (in general, not against his father).
- He knows boar that cannot live in a herd due to Magical Air, but the human doesn't care. So both make a bond and start to help each other.
- He lives on the border of dangerous places to help people or just scare them away so they don't get in problems... and... thats it.
... well, that was shorter in my mind xD But it's still a summary 
So, he is a person that can hold his ground in violent situations, that search for justice and to help people (in a personal and general sense, he doesn't know actual law... nor care) and that feels like there is no place for him to stay.
Now, the character sheet (or sheets, there is also the boar):
Onfroi
Age: 33
Warping: 0
Confidence: 1(3)
Size: 0
Personality Traits
- Angry +2
- Brave +3
- Passionate +2
- Loyal +3
Characteristics
- Int: +1
- Per: +1
- Pre: 0
- Com: +1
- Str: +2
- Sta: +1
- Dex: +2
- Qik: +2
Virtues
Cautious with Great Weapon (1), Enchanting Music (1), Faerie Blood: Huldra (1), Improved Characteristics x2 (2), Puissant Enchanting Music (1), Puissant Great Weapon (1), Unaffected by The Gift (1), Voice of The Forest (1), Warrior (1)
Flaws
Disfigured: Cow tail & Hollow back (1), Incomprehensible (1), Lycanthrope: Bear (3), Magical Animal Companion (1), Obsessed: Justice (1), Outcast (1), Warped Senses: Sensitive to Heat (1), Wrathful (1)
Combat
- Dagger: Init: +2, Attack +8, Defense +6, Damage +5
- Long Spear: Init: +5, Attack +13, Defense +11, Damage +9
Soak: +1
Fatigue Levels: OK, 0, -1, -3, -5, Unconscious
Wound Penalties: -1 (1-5), -3 (6-10), -5 (11-15), Incapacitated (16-20), Dead (21+)
Abilities
- Animal Handling (Inspiring loyalty) 1
- Area Lore: Upper Lorraine (Natural areas) 2
- Area Lore: Swabian (Natural areas) 2
- Athletics (Sprinting) 2
- Awareness (Searching) 4
- Brawl (Dagger) 3
- Charm (Being daring) 2
- Chirurgy (First aid) 1
- Concentration (Stay still) 3
- Enchanting Music (Fear) 5+2
- Folk Ken (Deception) 2
- Great Weapon (Long spear) 5+2
- Hunt (Covering tracks) 2
- Intrigue (Gossip) 1
- Language: French (Lorrain) 5
- Leadership (Intimidate) 1
- Music (Sing) 5
- Stealth (Sneak) 4
- Survival (Forests) 3
Boar shape
Confidence: 1(3)
Size: 0
Personality Traits
- Angry +3
- Brave +4
Characteristics
- Cun: +1
- Per: +1
- Pre: -4
- Com: -4
- Str: +2
- Sta: +2
- Dex: +2
- Qik: +2
Virtues
Berserk (1), Enduring Constitution (1), Ferocity: When cornered (1), Tough (1), Unaffected by The Gift (1), Voice of The Forest (1)
Flaws
Greedy (1), Disfigured: Cow tail & Hollow back (1), Magical Animal Companion (1), Warped Senses: Sensitive to Heat (1), Wrathful (1)
Natural Qualities
Aggressive, Hardy, Herd Animal, Tireless, Tough Hide
Combat
- Tusks: Init +2, Attack +12, Defense +10, Damage +7
- Tusks (berserk): Init +2, Attack +14, Defense +8, Damage +7
Soak: +10
Fatigue Levels: OK, 0/0, -2/-2, -4/-4, Unconscious
Wound Penalties: -1 (1-5), -3 (6-10), -5 (11-15), Incapacitated (16-20), Dead (21+)
Abilities
- Athletics (Sprinting) 4
- Awareness (Foraging) 3
- Brawl (Tusks) 5
- Survival (Forests) 5
Guiscard, the Black Boar
Season: Summer
Age: 6
Might: 5 (Animal)
Confidence: 1(3)
Size: +1
Personality Traits
- Angry +3
- Brave +4
- Greedy +2
- Loyal (to Onfroi) +2
Characteristics
- Int: -3
- Per: 0
- Pre: -4
- Com: -5
- Str: +2
- Sta: +2
- Dex: 0
- Qik: +1
Virtues
Berserk (1), Enduring Constitution (1), Ferocity: When cornered (1), Large (1), Tough (1)
Flaws
Magical Friend (1), Magical Air (3), Wrathful (1)
Natural Qualities
Aggressive, Hardy, Herd Animal, Tireless, Tough Hide
Magical Qualities
Improved Attack: Tusks (1), Improved Damage: Tusks (1), Improved Initiative: Tusks (1), Improved Soak x2 (2), Minor Virtue: Unaffected by The Gift (1)
Magical Inferiorities
Susceptible to Deprivation (1)
Combat
- Tusks: Init +4, Attack +15, Defense +12, Damage +10
- Tusks (berserk): Init +4, Attack +17, Defense +10, Damage +10
Soak: +11
Fatigue Levels: OK, 0/0, -2/-2, -4/-4, Unconscious
Wound Penalties: -1 (1-6), -3 (7-12), -5 (13-18), Incapacitated (19-24), Dead (25+)
Abilities
- Animal Handling (Boars) 1
- Area Lore: Swabia (Woods) 2
- Athletics (Sprinting) 4
- Awareness (Foraging) 3
- Brawl (Tusks) 8
- Survival (Forests) 5
- Swimming (Swampy waters) 1
And to finish, and because knowing me i usually mess with the numbers part, i add the abilities leveling too, so we can be sure that everything is correct xD
------- First 5 years -------
- Area Lore: Upper Lorraine (Natural areas) 1
- Athletics (Sprinting) 1 (5exp)
- Awareness (Alertness) 2 (15exp)
- Language: French (Lorrain) 5 (free)
- Stealth (Sneak) 2 (15exp)
- Survival (Forests) 1 (5exp)
------- 28 years (420 exp) + 50 exp from Warrior -------
- Animal Handling (Inspiring loyalty) 1 (5exp)
- Area Lore: Upper Lorraine (Natural areas) 1 --> 2 (10exp)
- Area Lore: Swabia (Natural areas) 2 (15exp)
- Athletics (Sprinting) 1 --> 2 (10exp)
- Awareness (Alertness) 2 --> 4 (35exp)
- Brawl (Dagger) 3 (30exp)
- Charm (Being daring) 2 (15exp)
- Concentration (Stay still) 3 (30exp)
- Enchanting Music (Fear) 5+2 (70exp)
- Folk Ken (Deception) 2 (15exp)
- Great Weapon (Long spear) 5+2 (75exp)
- Hunt (Covering tracks) 2 (15exp)
- Intrigue (Gossip) 1 (5exp)
- Leadership (Intimidate) 1 (5exp)
- Music (Sing) 5 (75exp)
- Stealth (Sneak) 2 --> 4 (35exp)
- Survival (Forests) 1 --> 3 (25exp)
PS: I forget to comment a few more points and decisions about the character.
I took a bear as lycanthrope shape because the flaw demands to be a dangerous predator, so a boar, even if that would be thematically fine, it wouldn't accomplish the requirements.
Also, for the bear shape i've used the rules that appear in Mystery Cults. I've saved Voice of The Forest because it mentions that sobrenatural abilities remain, but i've removed Enchanting Music because a singing bear it just feels wrong xD Also, he has Cunning, so i doubt that a bear would think to use music at all in first place anyways.
About that, when those rules mention about removing General abilities in animal shape but saving the knowledges... i was unsure about the exact abilities to save. So, for now, i just removed them all.
About the boar, i've added Intelligence instead of Cunning because its mentioned into the Story Flaw. I chose to put a -3 in Int, because of his size. If somebody thinks that it should be lower, it can be changed.