You have learned to get the element of surprise on your foes.

• Increase your Dexterity ability score by 1, to a maximum of 20.
• You know how to strike subtly and exploit a foe’s distraction. Once per turn, you can deal an extra 1d6 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.
• The amount of the extra damage increases as you gain levels. It becomes 2d6 at 5th, 3d6 at 10th, 4d6 at 15th, 5d6 at 20th.