Way of the Brawler

Adrenaline Rush

Starting at 3rd level, you gain advantage on saving throws to magical effects. When you make a successful Attack you can spend 1 ki to use str modifier dex modifier and Proficiency to a damage roll instead of normal damage bonuses.

Payback

At 6th level you can spend 3 ki points as a reaction to attack a creature within 5 feet of you. After taking damage you can return a single unarmed attack that automatically hits.

Ki Abilities

At 11th level you gain abilities that use ki.

Grounding Strike
You can spend 3 ki points before you make an unarmed attack and on a successful attack the creature must make a dexterity saving throw with (DC 8 + athletics or acrobatics, your choice) or be knocked prone.
Primed Flurry of Blows
At the start of your turn you can spend 8 ki points to double the amount of attacks you can make in this one turn *this can stack with flurry of blows.

Attack Streak

At 17th level when you make a successful attack your next attack roll is at advantage