Goblin

Creature Type: Humanoid
Size: Small (about 3-4 feet tall)
Speed: 30 feet
Darkvision: 60 feet
Fey Ancestry: You have advantage on saving throws you make to avoid or end the charmed condition on yourself.
Fury of the Small: When you damage a creature with an attack or a spell and the creature’s size is larger than yours, you can cause the attack or spell to deal extra damage to the creature. The extra damage equals your proficiency bonus. 

• You can use this trait a number of times equal to your proficiency bonus, regaining all expended uses when you finish a long rest, and you can use it no more than once per turn.

Nimble Escape: You can take the Disengage or Hide action as a bonus action on each of your turns.