Far less mystical than most monks. Brawlers are brutal fist-fighters who honed their abilities in street-fights and bar-brawls. Brawlers focus more on physical perfection than spiritual perfection. They fight with more desperation and brutality, their techniques focused on violence rather than elegance. 

Brawler's Resolve

Starting at 3rd level, you gain 1 additional hit point level you. Also your armor class equals 10 + your dexterity modifier + your constitution modifier. You also gain advantage on all Strength (athletics) checks.

Brawler's Zen

Also starting at 3rd level, you learn to enter a zen-like state that empowers your martial prowess. By spending 3 ki points as a bonus action, you may enter a state of "Brawler's Zen". For 1 minute after using this feature, you may add your proficiency bonus to the damage rolls of your unarmed strikes.  

Roll With the Punches

Beginning at 6th level, your understanding of violence grants you a greater degree of natural defense. At the beginning of your turn while you are in the "Brawler's Zen" state, you gain temporary hit points equal to your Constitution modifier. (Minimum 1) These temporary hit points last until the beginning of your next turn, at which point, these temporary hit points are reset to equal your Constitution modifier. These temporary hit points do not stack with temporary hit points from other sources.

Extra Attack

You may attack 3 times instead of 2 when you take the attack action.

Champion Brawler

Starting at 17th level, gain the following benifits:

• when you roll initiative, you may choose to enter your "Brawler's Zen" at the cost of no ki points and no action cost. Once you have used this feature, you may not do so again until you complete a long rest.
• In addition when you are in a state of "Brawler's Zen", your unarmed attacks count as critical strikes on a roll of 19-20.
• Your Strength score increases by 2 to a maximum of 22.