You are no typical fighter. You taught yourself this art in every bar or inn you went to. You do one thing and one thing only and you are a master at this. You are proficient in fighting with your hand and in fighting with random items you find on the table, you can toss a little gnome that is standing next to you but someone else may as well throw a gnome at you and you won't feel a thing.

A brawler doesn't care about his bruises nor about what weapon is held by him.

Master of random weapons

Starting at 3rd level, you gain the following bonuses:

• You may add your proficiency bonus to any attack rolls you make with an improvised weapon. 
• You can add both dexterity bonus and strength bonus to your damage rolls of your unarmed strikes and monk weapon.
• Your improvised weapons can also be used as monk weapons.

Mosh pit fighter

At 6th level, you gain two of the following benefits:

• Leap to Your Feet: When you're prone, you can stand up by spending 5 feet of movement, rather than half your speed.
• 1v1 Fights: When you are in melee range of only one creature you get advantage on all Acrobatics and Athletics rolls. On top of that you get an advantage on damage rolls on creature you grapple.
• Not your size: You can shove and grapple creature two sizes larger than you.
• Bar fighter: You can spend another ki point when using a stunning strike, to give a disadvantage to your opponents Constitution saving throw.
• Fair fight: You don't get disadvantage on prone creatures with your range attacks with your monk weapons. On top of that you automatically crit when you hit a prone creature that is within 5 feet of you

Through scars and bruises

Starting at 11th level you gain one additional Exhaustion level before all of the others exhaustion levels. Your Exhaustion levels now look like this:

Exhaustion level:

1. Disadvantage on Ability checks but you get advantage on all Constitution and Strength saving throws

2. Disadvantage on Ability Checks

3. Speed halved

4. Disadvantage on Attack rolls and Saving Throws

5. Hit point maximum halved

6. Speed reduced to 0

7. Death

 

The platinum skin

Starting at 11th level when you use patient defence you may spend another ki point to gain temporary hit points equal to = your Monk level + Con mod(min. 0) - used ki points

Mosh pit master

Starting at 17th you gain one additional benefit from the Mosh pit fighter. Also from now on, whenever you crit on attack roll you regain 1 ki point's and can make this attack a stunning strike attack.