Source: Xanathar's Guide to Everything
Prerequisite: Dwarf or a Small race
You are uncommonly nimble for your race. You gain the following benefits:
- Increase your Strength or Dexterity score by 1, to a maximum of 20.
- Increase your walking speed by 5 feet.
- You gain proficiency in the Acrobatics or Athletics skill (your choice).
- You have advantage on any Strength (Athletics) or Dexterity (Acrobatics) check you make to escape from being grappled.