Lucky Number 7

Gambler Pursuit: 6th level Whenever you roll a 7 on an attack roll against the target of your Critical Analysis feature, the attack automatically hits and you regain an expended superiority die. When attacking with advantage or disadvantage, this effect applies if either roll is a 7. If both rolls are a 7, the attack is a critical hit.

Granted by Gambler Pursuit at 6th level.