2 Dexterity, +1 Constitution [use for to add to the stats 

A bonus to saving throws against poison, disease, or being frightened (representing a harsh life of eating raw cave-meat and surviving brutal conditions). Or, a once-per-long-rest feature where dropping to 0 hit points drops them to 1 instead, keeping them kicking when things get desperate.

They reach adulthood around age 20 and can live up to several centuries, their lifespans often stretched or warped by dark, subterranean environments.

Your size is Small. You fit into tight spaces and narrow tunnels with ease.

Your base walking speed is 30 feet, and you have a Climbing Speed of 30 feet.

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.

Your sharp teeth and long nails are natural weapons, which you can use to make unarmed strikes. If you hit with them, you deal slashing or piercing damage equal to 1d6 + your Strength or Dexterity modifier, rather than the normal bludgeoning damage for an unarmed strike.

When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. Once you use this trait, you can't use it again until you finish a long rest.

You can speak, read, and write Common and Undercommon and one other