Monks of the Way of the Flying Knife rely not on their fists, but cold hard steel instead. They've learnt to channel their ki through daggers and are considered by most to be closer to thieves than actual monks.

Flurry of Blades

Starting when you choose this tradition at 3rd level, you learn to incorporate your blades into your martial arts. When you use your Flurry of Blows feature, instead of making two unarmed strikes, you can choose to replace any number of them with thrown dagger attacks instead. 

Additionally, you can stow and draw daggers as a free action, instead of a bonus action on your turn.

Ki-Infused Blades

At 6th level, you gain the ability to imbue your blades with the ki flowing through your body. Ranged attacks with your daggers are considered magical for the purposes of overcoming resistance and immunity to non-magical attacks and damage.

Additionally, whenever you make a ranged attack with a dagger, you can spend 1 ki point to have it pierce multiple targets. Use the same attack roll for any creature behind the original target, and the dagger stops and embeds itself in the floor when an attack misses or when it reaches its maximum range.

Returning Daggers

Beginning at 11th level, you can recall your daggers at incredible speeds to tear through your enemies.

As a bonus action, you can spend 2 ki points and cause all of your daggers that you can see and are not on your person to rapidly fly towards you, harming those in the way.

Your daggers take the shortest possible route to you and travel in a 5 foot wide line. Any creature of your choice in that line must make a Dexterity saving throw (DC {{savedc:wis}}) or take damage equal to 1 roll of your martial arts die (rolling separately for each dagger). A creature that succeeds the saving throw takes no damage.

The DC for this saving throw is equal to 8 + your Proficiency bonus + your Wisdom modifier.

Hail of Blades

As an action, you can spend 3 ki points to create a hail of knives in a 5 foot radius around your person that lasts until you dismiss it. While the hail is active, you gain the following benefits:

• You gain a +2 bonus to your AC and any ranged attacks (excluding yours) targeting you or passing through the storm have disadvantage on the attack roll.
• When using your Flurry of Blades feature, the number of extra attacks increases to 3.
• Any creature that enters within the space affected by the Hail for the first time or starts its turn there must make a Dexterity saving throw (DC {{savedc:wis}}) or take 3d10 slashing damage. A creature that succeeds on the saving throw instead takes half damage.

Once you use this feature, you cannot use it again until you've finished a long rest.