Carcinisates grow slowly, and can live for a few thousand years. They reach adulthood around 250 years.

Carcinisates have densely muscular, heavy, and squat bodies covered in thick plates of chitinous armor. Carcinisates stand between 5 to 6 feet tall and can weigh upwards of 400 pounds. Your size is medium.

Carcinisates are slow moving creatures on land, scuttling forward with deliberate purpose. They can move relatively quickly in water however. You have a walking speed of 30 feet, and a swimming speed of 35 feet. Additionally, you can breathe underwater. 

The primary language of the Carcinisate people is Aquan, but they also can speak a deep, broken dialect of Common. You can speak, read, and write Common and Aquan.

Carcinisates are extremely strong and hearty people, with a natural affinity for fighting up close and personal. You have a thick, durable shell of armored chitin. Your shell provides you a base AC of 17 (your Dexterity modifier doesn’t affect this number) and you reduce the damage of any slashing, piercing, or bludgeoning damage you take by your Proficiency bonus. You can’t wear armor of any kind, but if you are using a shield, you can apply the shield’s bonus as normal.

Carcinisates have strong, solid, low to the ground builds that give them an above average sturdiness. You cannot be knocked prone and you have advantage on saves against being rendered stunned and/or restrained.

One defining trait of Carcinisates is their big meaty claws. They have massive razor sharp claws that they can snap shut within an instant, and when they clamp their huge pincers around something, they do not let go.

You may replace any melee attack with a grapple attempt. While you have a creature grappled, you may use your bonus action to crush them in your claws, dealing 1d6 + Strength mod piercing damage.