Brawler

Calloused knuckles, broken jaws, and bloody noses are a brawlers specialty, they have opted to use brute strength and fists over normal weaponry. Being able to goad people into fighting you into a one-on-one fights you have yet to lose. 

Mano E Mano

Starting at 3rd level, you can goad people to fight you. As a bonus action you can force a creature within 30 feet to succeed a Wisdom saving throw or be forced to target only you with their attacks and abilities for the next minute. Creatures other than you have advantage on attacks and abilities against the goaded creature. The goaded creature can remake the save at the end of their turn and if a different creature other than you attacks it. You can use this ability a number of times equal to your proficiency bonus. You regain all uses after a long rest.

To aid in maintaining your targets focus whenever a creature attempts to save from your goad, you can spend ki points to maintain your influence. You can spend 1 ki point to give a single creature a -2 to the saving throw, 2 ki points for disadvantage on the saving throw, or 3 ki points for -2 and disadvantage on the saving throw.

Extensive Muscle Training

Also at 3rd level, your muscle bound body makes even the sharpest blade have trouble cutting you, as a result you add your Strength Modifier to your AC instead of your Dexterity. You also gain proficiency in Intimidation. 

Finally a Fair Fight

Starting at 6th level, confidence in your own physical abilities has given given you quite the ego. As a result, when you use your Mano E Mano feature you can target a number of additional creatures equal to your Wisdom Modifier. 

The Wall

Your unnatural strength has nicknamed you "The Wall", at 6th level, anytime an attack, spell, or ability forces you to make a Dexterity saving throw, you can instead make a Strength Saving throw.

Down but Not Out

By 11th level, you have an indomitable fighting spirit. When you are dropped to 0 hit points, you can use your reaction to take the attack action before falling unconscious. These attacks can be Ki empowered. You can use this once long rest or at the cost of 10 Ki points. You also have advantage on Death Saving Throws

The Thunder Dome!

By the time you reach 17th level, you have become a professional at pissing people off. As a result when you use your Mano E Mano feature you can target any number of creatures in range and if they fail the save they cannot remake the save for the duration of Mano E Mano. You can use this ability once long rest.