When determining your character's ability scores, 

increase your Strength score by 2 and 

increase your Constitution score by 1.

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 discern colors in that darkness only as shades of gray

As an action using your tentacles, you can project a magical illusion of yourself as far as 60ft. You need to maintain concentration while you do it. The illusion can move at will of the character, as long as it stays in the range of action. However, the illusion can’t manipulate objects or generate sounds by itself. 

As a reaction to being targeted by an attack you can have the illusion partially overlap your form causing disadvantage on the attack roll made against you. You can do this a number of times equal to your proficiency bonus and regain all uses on a long rest

You have four arms, two tentacles all of them can be used to perform simple interaction with objects. They can manipulate an object, open or close a door or container and pick up or set down a Small object. Only the  secondary arms can wield a weapon that has the light property. You do not gain any additional attacks from these extra limbs

You can use your claws and tentacles to do an unarmed strike despite the length of the displacer kin’s tentacle; they do not have the reach property. When you hit with them, the strike deals 1d6 slashing damage + your Strength modifier.

You are proficient in the Intimidation and Survival skills

Given your extra limbs and tentacles, you can’t wear a piece of armor unless it has been properly adapted or designed to accommodate your body type. It is up to the DM on how much these changes cost

You can speak, read and write Common and one language of your choice.