Homebrew Frigid Coast Crustaceanborn Species Details

 7 to 9 feet tall with brown and green plated and spiked skin, complex eyes mounted on the top of their heads, 1 huge claw on both sides of their mostly humanoid form, 2 pairs of humanoid hands beneath the larger claws, and 1 more pair of smaller, dexterous 4 clawed pincers in front of the hands that fold against the sides of the body when not in use, and crab mouthparts. They have legs with feet that are made up of several radial claws that can be moved up and down to acquire better grips on surfaces, and the bottom of the foot is padded with a tough but flexible material similar to rubber.

They were created by an insane Lich messing around with genetics. All Crustaceanborn originate from the same island where they were created, and the only way to access that island is to create a map with its exact location plotted on it. 

Frigid Coast Crustaceanborn Traits

Frigid Coast Crustaceanborn are hulking and strong, and are adapted to both the land and the sea.

Compound Eye Stalks

Frigid Coast Crustaceanborn posses incredibly complex compound eyes mounted on stalks. They can detect 12 different wavelengths of light, but only in a small radius when there is minimal lighting. Can see up to 40 feet in color in dim light, 30 feet with slightly dulled color in darkness. They have 360 degree vision.

4 Arms

Frigid Coast Crustaceanborn posses 2 pairs of humanoid arms.

Amphibious

Can breathe both water and air.

Tac Crab

Use tactical crab maneuvers to gain an extra attack.  Capable of using their bonus action to attack with a simple weapon.

Scavenger

Frigid Coast Crustaceanborn are able to eat a wide variety of things, such as; rotting meat, any underwater vegetation, most non-poisonous foliage, and raw meat with no consequences.

Ability Score Increase

Crustaceanborn posses the strength and resolve of the mightiest of crabs. +2 STR, +1 CON 

Small Pincers

They have a pair of small pincers that are used mostly for manipulating small or delicate objects.

Claws

Frigid Coast Crustaceanborn posses a set of massive claws that are each capable of exerting 3000 pounds of force. They deal 1d6 + Str damage to a grappled or otherwise immobilized target. Advantage against objects.