Ratfolk

ability score increase: Dexterity: +4, Wisdom +1, Charisma -2

age: 70 - 120

alignment: usually neutral, very rarely evil

Size: Medium

speed: 35 ft

Languages: Common, Ratfolk, Beast

race features:
Sunlight Sensitivity. While in sunlight, the ratfolk has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.
Darkvision. You are used to dark areas, and your eyes have adjusted to such. You can see in dim light within 60 feet of you as if it were bright light, and darkness as if it were dim light. You can't discern color in darkness, only shades of grey.
Adapted hearing and smell: You have advantage on all perception checks relying on hearing or smell.
Adapted to stocks: You have advantage on poisons and disease saving throws.
Beings in darkness: You have advantage on stealth checks.
Small skeleton: You are considered small for squeezing between tight spaces.
Sprinting nature: You can spend your full turn to sprint. As result, you can move up to 4 times your movement speed. Attacks of opportunity are made with advantage and you must run in a straight line.