You are an Undead.

Your Constitution score increases by two and your Strength score by one.

Your character can speak, read, and write Common and one other language that you and your DM agree is appropriate for the character. 

You are Medium.

You have a walking speed of 25 feet.

Instead of Healing spells having no effect on you, all healing is halved for you. On top of that you gain advantage on all Death Saves.

Once per short rest as a bonus action you can move through other creatures and objects as if they were difficult terrain for one minute. You take 1d10 force damage if you end your turn inside an object.

While in darkness you see as if you were in bright light. While in bright light you see as if you were in dim light.

Once per short rest you can use your action to consume a medium or smaller creature that is dead to regain 1d6 times your proficiency bonus hit points. You can also spend 10 minutes consuming a medium or smaller creature to regain the same amount of hitpoints a unlimited amount of times. If the creature is large the consumption takes 1 hour instead, though you regain 2d6 times your proficiency bonus hit points. You cannot use this ability on a creature that is bigger than large.

If you consumed a creature in the last 24 hours and you drop to 0 hit points all creatures within 10 feet of you need to make a DC 8 + you constitution modifier + your proficiency bonus or take 2d6 acid damage. You may use this ability only once per short or long rest.

You count as one size larger when determining your carrying capacity and the weight you can push, drag, or lift.