You gain a bonus of +2 to both your Strength and your Constitution.  However, you suffer a -2 to your Intelligence.  

The Daku will reach adulthood at the young age of 5.  In spite of this, they have the ability to live very long lives and can live up to 100 years.  However, few rarely reach this old age.  Life is hard among the Daku.

The Daku are extremely warlike, and are quick to take offense and react with violence.  Because of this, they are thought both "evil" and "chaotic" by other races.  In truth they are mostly ruled by a system of honor and can be very loyal to their own, especially in battle, and they have little regard to good and evil.  

A typical Daku warrior will stand about 8 feet tall and weigh about 350lbs.  You are at the upper edge of "medium."  

• You can see in dim light within 60 feet of you 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.
• You can sense the smell of blood with incredible accuracy.   In the water, you can sense spilt blood out to a radius of 1/2 mile.  Out of the water, you can sense blood within 100 yards.  You can make perception checks at advantage if they rely upon smell.  
• You can breathe air and water.

You have a walking speed of 30, and a swimming speed of 45.  

You can speak primordial, and you are able to read and write enough in this language to pass on basic thoughts and concepts.  You can speak just enough common to pass on basic thoughts and concepts.  You cannot read or write in this language.

As an unarmed attack, you can attempt to bite an opponent.  What else would you have a very large mouth full of extremely sharp teeth?  A successful bite will do 2d6 piercing damage.  A successful bite will add 10% to the chances of going into a bloodlust.

When you reach fifth level, you have the ability/curse of the Bloodlust.  Each time you enter combat, the first time you injure an enemy and spill its blood, you must roll a d100.  If you roll 50% or less, you will go into a bloodlust and begin to kill with reckless abandon.  If you are a barbarian and raging, this percentage goes up to 65%.  If your first attack is an unarmed bite attack and is successful, the chance of going into a bloodlust goes up another 10%. 

While you are in a bloodlust, you must roll a Wisdom save (DC is 13 + Your proficiency bonus) to stop attacking foes on the battlefield.  While you are in a bloodlust, you gain an advantage to one melee attack that relies upon strength per round.   Also while in a bloodlust, you will ignore all damage you take, as if you have resistance to any type of damage, and you will fight beyond 0hp for 2 rounds.  You will not think to seek out healing of any kind.  At the end of two rounds upon reaching zero, or when you end your rage if you are a barbarian, all the damage you have suffered will come rushing back at you.  If you are below 0 when this happens, you will drop unconscious and begin making death saving throws at this time.

Beginning at fifth level, you can cause your enemy to be fearful of you.  As a bonus action, you can stand in a place where all can see you and become known to all.  Each creature of your choice that is within 60 feet of you and aware of you must succeed on a DC 13 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to your Frightful Presence for the next 24 hours.  You can use this ability twice per long rest.