Your keen sense of smell allows you to detect the scent of blood within 60 feet. When tracking creatures that are injured and bleeding, you have advantage on Wisdom (Survival) checks to track them.

Due to your unique bloodline, you have resistance to necrotic damage.

You have advantage on saving throws against being frightened and can't be charmed while in your wolf form.

As a Bloodfang Wolfkin, you have the ability to transform into a wolf. You can use your action to magically assume the shape of a wolf or revert to your true form. While in wolf form you gain a bite attack that deals 1d6 piercing damage. Your statistics, other than your size, remain the same. You can remain in wolf form for up to 1 battle 2 times a day, after which you revert to your true form (frequency outside of battle is determined by DM). If an ally is next to the enemy, you gain an advantage on attacks.

You have powerful jaws and sharp teeth. You can use your action to make a bite attack. This is a melee weapon attack that uses Strength, and you are proficient with it. The bite deals 1d6 piercing damage. If you hit a creature that is already injured, the bite attack deals an additional 1d6 damage. You regain hit points equal to the total damage dealt by the bite attack when you reduce a creature to 0 hit points using this feature. Only usable while in wolf form.

Your Dexterity score increases by 2 and your Strength score increases by 1. However, because of the Bloodfang's secluded nature, your Charisma decreases by 1.

You get a bonus to your perception rolls if it involves hearing or smell.

You know common only in your hybrid form and can talk to any animal.

You have keen senses and can see in dim light within a range of 60 feet as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.