Because of your nature you’re stronger, faster, and more resilient

+1 to STR-DEX-CON.

Some wolves are stronger or faster or even more resilient you can choose to put the bonus in any combo

The wolf nature running through your blood allows you to see more in the dark.

Darkvision out to 120’

Your natural senses have been increased by the wolf

You have advantage on perception checks concerning smell and hearing

While In your natural of hybrid form you can attack with a set of deadly claws

Keep In mind That transformed into your full wolf form, you don't get this feature. Only the bite

The ferocious bite of the wolf

This One natural attack can be used In all 3 forms

A creature bitten must make a con save DC 14 or be cursed with lycanthropy. Keep in mind this creates a normal strain of lycanthropy. The Fenrir bloodline can only be born into. 

When in wolf form and A successful bite has hit target must make STR grapple save or be knocked prone

Your werewolf nature allows you to take 3 forms. Each form is considered A natural state so even if you fall below 0 HP you will stay in That form.

The exception to this is the full hybrid form of which you don't control.

Humanoid form

This form is A hybrid of both the Varient human form or base form and hybrid form. Body is covered In fur except for face, chest, and stomach, both palms of your hands/feet. Your hands have claws and your teeth are That of the wolf. You have more pronounced K-9 teeth. You have A tail and your ears are pointed just A little Bigger than an Elf's. Fur color and eye color come in just about any shade.

Hybrid form

 your classic werewolf hybrid. This form is only accessible on A full blood moon and is in A constant blood frenzy rage. DC 20 WIS every blood moon or you forcefully changed against your will. In this form you assume the full mantle of the Classic werewolf as far as looks. Fur and eye color remain the same just more of wolf like nature. 

Wolf form

When in this form you are A dire wolf. Only other form That you can change into at will as A bonus action.

During A full blood moon the rage swells within you. On this night you must make A DC 20 WIS save or forcefully change Against your will and completely lose control. The DM takes control of you during this.

because of your blood lust and loss of control, you cannot tell friend from foe. 

The werewolf possesses a weakness towards silver. This comes in the form of silvered Weapons and the damage that it can Make against the werewolf

Silvered Weapons bypass the normal resistance that a werewolf possesses to BPS (Bludgeoning, piercing, slashing)

For example; BPS Damage Is only half damage, however, if a weapon possesses silver or his silver edged or some variation of that, it allows for normal damage.

Thanks to your werewolf nature And the blood of Fenrir running through your veins, You are more adorable in all three forms.

You’re natural AC starts at 12 before any bonuses and/or modifiers are added

You Are naturally resistant To damage allowing for only half damage when it comes to BPS (Bludgeoning, piercing, slashing) (Keep in mind this is a resistance, not an immunity)