Warrior of the Bloody Knuckle

Unlike the traditional Monks, Bloody Knuckle Warriors are trained by themselves in alleys and bars rather than a monastery. They use their unorthodox methods to gain the upper hand, throwing grace (and their opponents) out the window. 

Rough and Tumble

 Starting at third level, whenever you expend a Focus Point to use Patient Defense, you may make an Unarmed Strike at a target within range, allowing you to give one last blow before becoming hard to hit.

Quick Patch-Up

You may expend a Focus Point to roll one of your hit dice + your Proficiency Bonus, and regain that amount of hit points. You may do this once per turn.

Below the Belt

When you make an Attack of Opopportunity against a target, its movement speed falls to zero. Furthermore, you can trigger an Attack of Opopportunity against a creature within five feet that missed an attack roll against you.

Fake-Out

Unhonest Onslaught: When you expend a Focus Point to use Patient Defense, you may cause yourself to have the prone condition. While being prone in this way, your Unarmed Strikes have advantage rather than disadvantage. This ends once your prone condition ends. Furthermore, you may end the prone condition on yourself without expending movement.

Sucker Punch: When you miss an attack roll, you may expend two Focus Points to reroll the attack, and you must use the new roll. If the new roll hits, you may add an extra roll of your martial arts die to the damage. This can only be done once per turn.

Rough 'em Up

Whenever you are grappling a creature and you expend a Focus Point to use Step of the Wind, you may expend three more Focus Points to rake the grappled creature across the ground, dealing the damage type of your Unarmed Strikes. The damage is equal to one roll of your martial arts die for every twenty feet traveled, to a maximum of five rolls. After doing this, your grappling of the creature ends, yet the creature has the prone condition.