Rookie Rogue (5e Feat)
From D&D Wiki
You have become adept in the ways of landing stealthy blows and have gained skills through your hard work:
- Choose one skill of your choice you are proficient in or is on the rogue skill list. You add double your proficiency bonus to checks made with that skill.
- Once per turn, you can deal an extra 1d4 weapon damage to one creature you hit with an attack if you have advantage on the attack roll. The attack must use a finesse or a ranged weapon. You don’t need advantage on the attack roll if another enemy of the target is within 5 feet of it, that enemy isn’t incapacitated, and you don’t have disadvantage on the attack roll.