Elite Mercenary (5e Subclass)
From D&D Wiki
The elite mercenary is an subclass for the fighter. The elite mercenary combines the simplistic hardiness of the champion with the battle experience of the battle master.
Starting at 3rd level you gain a +1 bonus to weapon attack rolls and a +1 bonus AC when you wield a versatile weapon in both hands, a two-handed weapon, or light weapon in each hand.
- True Heart
Starting at 7th level, if you observe a humanoid for 1 minute you gain advantage on subsequent Wisdom (Insight) checks made to determine their alignment and motives.
- Not to Be Outdone
From 10th level onwards, when a melee attack roll is made against you, you can use your reaction to gain a +2 bonus to your next melee attack roll and damage roll against the triggering creature before the end of your next turn.
- Anticipate and Move
From 15th level onwards, the first opportunity attack you make each round does not use up your reaction.
Starting at 18th level, at the start of each of your turns if you have less than half your hit points and you are not incapacitated, you regain 5 + your Constitution modifier hit points.