Level 7: Master's Gaze
Level 10: Dominance
Level 15: Battlefield Awareness
Level 18: True Mastery
Starting at 7th level, as an action, choose one creature you can see within 60 feet of you. You immediately learn whether the creature has any damage immunities, resistances, or vulnerabilities and what they are, as well as its Armor Class and current hit points.
If the creature is hidden from Divination magic, you sense that it has no damage immunities, resistances, or vulnerabilities, it's current hit points are 25% lower and its Armor Class is 3 points lower than it really is if it's above 14, else only 1 point lower.
You can use this feature a number of times equal to your proficiency bonus. You regain all expended uses of it when you finish a Long Rest.
Starting at 10th level, you can spend a superiority die to make a single attack as a bonus action.
Starting at 15th level, if you do not have any more reaction left, but a hostile creature’s movement provokes an opportunity attack from you, you can spend a superiority die to make opportunity Attack.
Starting at 18th level, you gain an additional superiority die. Also, when you roll Initiative and have 2 superiority dice remaining or less, you now have 3 superiority dice left. Also, if at any time you have no superiority dice remaining, you can use an inspiration point to regain 3 dice, or you can spend an Inspiration die (given by a bard, a Lead Fighter or the like) to regain 1 superiority die.