Way of the Street Fighter

Where some monks hone their abilities in temples or monasteries, you were forged in the streets and back alleys. Each lesson was taught at the end of an opponent's fist, and they were always painful. You've now mastered gained the resilience to take a hit and keep going, and you've learned that one must do anything to win if one wishes to stay alive.

Never Show Weakness

Starting when you choose this tradition at 3rd level, your mastery of fighting on the streets has taught you the importance of always putting on a strong front. When you are dealt damage by a melee weapon attack or unarmed strike, you may reduce that damage by an amount equal to your Charisma modifier.

Fight Dirty

At 6th level, you gain the ability to target weak spots on your opponent's body, for the victor stands far above the honorable. When you activate your Flurry of Blows,  your strikes gain the additional effect of forcing the opponent to make a Constitution saving throw against your Ki DC or be knocked prone.

Talk Trash

Beginning at 11th level, you know how to use your words to open up weakness in your opponents defense and inflict greater punishment. You may add your Charisma modifier to your damage rolls of melee attacks.

Tough It Out

Starting at 17th level, you've learned to focus your will and get back up when knocked down. When you are reduced to 0 hit points, you may expend a Ki point to expend and roll a hit dice, adding that amount plus your Charisma modifier to your hit points.