You have proficiency in the Investigation skill. In addition, you have advantage on Perception and Investigation checks.

With the ability to smell blood from a range of 3 miles, the smell of it can excite your hunger for battle. When you make an attack against a creature that doesn't have all its hit points, you can choose to make the attack with advantage. You can use this trait a number of times equal to your constitution modifier, and you regain all expended uses when you finish a long rest.

When you take the Attack action on your turn, you can replace one of your attacks with a vicious bite attack. This is a natural weapon attack with which you are proficient with and uses your Strength modifier for its attack rolls. This bite does 1d10 piercing damage, but grows to 2d10 at 5th level, 3d10 at 10th level, and 4d10 at 20th leve

When attacking or being attacked with any unarmed attack you deal an additional 1d6 + your constitution modifier as well as inflict bleeding

Player gains +2 to strength and +3 to constitution while losing -2 to wisdom and charisma