Monks of the Closed Fist unlike monks of the Open Hand focus on delivering deadly blows. They have little concern about defense trying to punch everything thrown at them. They see combat as the only effective way of assuring order and promoting their values.

Closed Fist Technique

Starting when you choose this tradition at 3rd level, your blows start to hit harder and harder not giving your opponents a moment to breathe. You have advantage on opportunity attacks made with unarmed strikes against creatures you hit during your last turn of combat. Additionally, whenever you hit the same target with both attacks granted by Flurry of Blows, you can harm it in one of the following ways:

• As a reaction, make one additional unarmed strike against it
• Force it to make a Constitution saving throw against being stunned. On a failed save, it becomes silenced until the end of your next turn. While silenced, it is mute and can't perform verbal components of the spells. Creatures immune to being stunned automatically succeed on the save.
  
  

Adamantine Fists

Starting at 6th level, after time spent on punching, your fists become enough hard to break walls, painlessly. Whenever you hit an object with an unarmed strike, the hit is a critical hit.

Additionally, you have resistance to acid, cold, fire and bludgeoning, piercing, slashing damage you receive directly as a result of making an unarmed strike against a creature or an object.

Paralyzing Blows

Starting at 11th level, when you score a critical hit againt the creature with an unarmed strike, you can roll one additional damage dice and the creature must succeed on a Constitution saving throw against your Ki save DC or become paralyzed until the end of your next turn. This feature has no effects on critical hits caused by creature being paralyzed.

Five-Pointed Star

Starting at 17th level, when you hit one paralyzed creature for the fifth time during a single turn, this creature is instantly reduced to 0 hit points.