Rogue Adept

You have been training to use you agility to your advantage. By doing so you have learned one of the following:

Cunning Action in order to take a bonus action to dash, disengage, or hide 

Sneak Attack, at Level 4 you can add an additional 1d6 of damage if you have advantage on an attack. The damage increases by 1d6 at levels 8, 12, 16, and 20.