You are vulnerable to radiant  damage, and resistant to necrotic damage.

You can spend one minute cannibalizing the corpse of a humanoid or beast that died within the last hour in order to regain hit points.Roll your hit die, and add your Constitution modifier to the roll. You regain hit points equal to the total.
After using this ability, you can't use it again until you complete a long rest.

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 have advantage on Charisma (Performance) checks made to appear dead.

You have advantage on Charisma (Performance) checks made to appear dead.

Forsaken do not require sleep. Instead of sleeping, they may enter a trance-like state for four hours, during which necromantic energies set to work repairing their bodies. This grants the same benefits as a long rest.

Your Constitution score increases by 2, and another ability score of your choice increases by 1.

You do not need to breathe

You have advantage on saving throws against charm and fear effects, and magic can't put you to sleep.