In this world many rely on magic, powers, or require the aid of a patron in order to solve their problems. Monks of the Way of the Single strike only need to rely on their fists. 

Single Strike Technique

Starting when you choose this tradition at 3rd level, you can manipulate your Ki to influence your unarmed strikes. You learn 2 of the following Single Strike techniques from the list below. Whenever you hit a creature with an unarmed strike, you may spend any amount of Ki to activate one of your single strike techniques. You learn an additional technique at level 6, 11, and 17.

• Enforced Strike- You may deal an additional d6 of damage for every Ki point spent.
• Disarming Strike- You attempt to disarm the target, forcing it to drop one item of your choice that it’s holding. The target must make a Strength saving throw. Reduce it's roll for every Ki point spent. On a failed save, it drops the object you choose. The object lands at its feet.
• Knockback Strike- You attempt to drive the target back. It must make a Strength saving throw. On a failed save, you push the target up to 5 feet away from you for every Ki point spent.
• Grappling Strike- You immediately attempt to grapple the target. Increase your Athletics check by the amount of KI spent.
• Enfeebling Strike- You attempt to weaken the target. It must make a Constitution saving throw. On a failed save, subtract the amount of Ki spent from attack rolls and saving throws from the target until your next turn.
• Sweeping Strike- You attempt to damage an additional creature with the same attack. Choose another creature within 5 feet of the original target, If the original attack roll would hit the second creature, it takes damage equal to the amount of Ki spent. The damage is of the same type dealt by the original attack. 

If you used any of these features once this turn as your only attack, you may forgo any additional attacks to regain 1 martial arts die of expended Ki points as a bonus action.

Disarming Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki to attempt to disarm the target, forcing it to drop one item of your choice that it’s holding. The target must make a Strength saving throw. Reduce it's roll for every Ki point spent. On a failed save, it drops the object you choose. The object lands at its feet.

Enfeebling Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki to attempt to weaken the target. It must make a Constitution saving throw. On a failed save, subtract the amount of Ki spent from attack rolls and saving throws from the target until your next turn.

Enforced Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki: deal an additional d6 die of damage for every Ki point spent.

Grappling Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki to immediately  attempt to grapple the target. Increase your Athletics check by the amount of KI spent.

Knockback Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki to attempt to drive the target back. It must make a Strength saving throw. On a failed save, you push the target up to 5 feet away from you for every Ki point spent.

Sweeping Strike

When you hit a creature with an unarmed strike, you may spend any amount of Ki to attempt to damage an additional creature with the same attack. Choose another creature within 5 feet of the original target, If the original attack roll would hit the second creature, it takes damage equal to the amount of Ki spent. The damage is of the same type dealt by the original attack. 

Trained Body

At 6th level, your experiences and training helps your body become more ready for battle. When you reach this level, pick 2 damage types to gain resistance to. You may gain an additional resistance at level 11 and level 17.

 You only gain resistance to the selected damage types while you are wearing no armor.

Acid Resistance

Gain resistance to Acid attacks

Bludgeoning Resistance

Gain resistance to bludgeoning  damage.

Cold Resistance

Gain resistance to cold damage.

Fire Resistance

Gain resistance to fire damage.

Force Resistance

Gain resistance to force damage.

Lighting Resistance

Gain resistance to lightning damage.

Necrotic Resistance

Gain resistance to necrotic damage.

Piercing Resistance

Gain resistance to piecing  damage.

Poison Resistance

Gain resistance to poison damage.

Psychic Resistance

Gain resistance to psychic damage.

Radiant Resistance

Gain resistance to radiant damage.

Slashing Resistance

Gain resistance to slashing damage.

Thunder Resistance

Gain resistance to thunder damage.

Trained Fist

Beginning at 11th level, your unarmed strikes become as trained as your body. When you hit a creature with an unarmed strike you may treat the damage as any damage type you are resistant to.

Surpassing Limitations

At 17th level, the limitations of Ki no longer affect you. When you would activate a single strike technique you may treat the Ki spent for a Single Strike Technique as double the amount of Ki spent. After you use this feature, it cannot be used again until you take a long rest.