As you are now undead, you have an increased resilience, as you are now just a bag of bones. Your constitution score increases by 2.

You do not age

You are the same size as the creature you were in your past life

Your base walking speed is 30 feet.

As a risen soul, you spend your nights being tortured by a higher being. This could be the Grim Reaper, the god of the underworld etc. You must take 1d10 necrotic damage off your max hp after every long rest.

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

Whenever both of your hands are free, you may choose to use a free hand and a bonus action to remove one of your arms. This arm counts as a weapon with the finesse property and it does 1d6 bludgeoning damage + your dexterity modifier, and you have proficiency with your arm while you wield it. If you remove your arm, it can be used as thieves' tools and can be used to pick a lock etc. You can reattach your arm by using another bonus action

Your creature type is undead, rather than humanoid. As a result of being undead, you have the following benefits:

• You do not need to eat, drink or breathe
• You are immune to disease
• You are immune to poison damage and the poisoned condiiton

When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. If you do, you reduce yourself to a pile of bones and render yourself prone. While subject to this condition, you are unable to move or take actions other than using an action to end this effect and reassemble yourself. You cannot use this feature again until you finish a long rest.

Speaking with a Skeleton is terrifying for most mortals. As a skeleton, you have disadvantage on all Charisma checks and saving throws against living creatures, except for intimidation, which you have advantage on.... because you're a skeleton. DUH!

Your extensive lifespan has imparted some useful skills others simply lack the time to master them. You gain proficiency with one skill, one weapon, or one set of artisan tools. You also gain proficiency in one additional language, one musical instrument or a gaming set of your choice