Your Constitution, Intelligence and Wisdom scores increase by 1

Wights do not age, and their flesh does not decay. They can endure unlife indefinitely after they are raised.

Wights are invariably of evil alignments.

Wights can be of most any race before they died. Your size is Medium or Small.

Your base walking speed is 30 feet.

You can speak, read and write any languages you knew in life.

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.

 The presence of living creatures registers on your senses like a noxious odor. As an action, you can open your awareness to detect life force. Until the end of your next turn, you know the location of any beast, dragon, elemental, fey, humanoid, giant or monstrosity within 60 feet of you that is not behind total cover. You know the type of any being whose presence you sense, but not its identity (Lord Bartholomew Van Der Woodsen, for instance). Within the same radius, you also detect the presence of any place or object that has been consecrated or desecrated, as with the hallow spell. Once you use this trait, you must complete a short or long rest before you use it again.

When you hit a humanoid with a melee weapon attack, you can use a bonus action to force the target to make a Constitution saving throw DC 8 + your proficiency bonus + your Constitution modifier. If they fail, they take a number of d6s equal to your proficiency bonus as necrotic damage. If they succeed, they take half the amount. You gain half the amount of necrotic damage dealt as temporary hit points. Once you use this trait, you can’t do so again until you finish a long rest.

You are immune to poison damage and exhaustion, and you can't be poisoned. You don't require air, food, drink, or sleep, but must rest motionless in order to regain abilities that may require a short or long rest.

Your creature type is undead instead of humanoid.

The change to your body makes you hide your dark self from light. While in sunlight, the wight has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

disadvantage on attack rolls

Your Charisma score increases by 1.

Additionally, humanoid that fails its saving throw against and is slain by your Life Drain rises 1 minute later as a zombie under your control as if you had created it with the Animate Dead spell. You can use this trait to reassert control over a raised zombie as required by the spell.