Blade Slinger

A well dressed figure walks out onto a darkened balcony, away from the bustle of the of the party. They look down upon a figure, drunkenly trying to make their way out of the building. Although they're supposed to be unarmed, the guards didn't think to check the knife hidden in their coattails, or the one in their sleeve, nor the one in their belt. The gentle moonlight shows the perfect spot, a straight path from them to the target, and no one to witness what's about to happen. One, two, three knifes to the head. Mission Complete. An expert at throwing light weapons, blade slingers excel at dealing damage at close to mid range. Experts at hiding weapons, they make excellent assassins and have extremely high mission completion rates. 

Blade Throwing Specialist

Starting when you take this subclass at 3rd level, you can attack with thrown weapons using a bonus action as long as they have the light property. 

In addition, thrown weapons with the light property have an additional 20ft. added to their short and long ranges. 

Hidden Blades

When you choose this subclass at 3rd level, you have advantage on Dexterity (Sleight of Hand) checks to conceal items on your person. 

In addition you can hide a number of light, throwing weapons on your person equal to your proficiency modifier. When you attack with these hidden weapons you make a Dexterity (Sleight of Hand) check against the creature you are attacking, contested by the target’s Wisdom (Perception) check. If you succeed, you gain advantage on that attack. 

Once you have used up your hidden weapons you can spend 30 seconds per weapon to re-conceal them (Creatures that witness this process automatically succeed the Wisdom (Perception) check. 

Flick of the Wrist

Starting at 9th level, you have learned to throw multiple weapons at once. When using the attack action to throw weapons that have the light property you can throw 2 at once. You can either throw both at the same creature or choose 2 creatures within 15ft of one another. Each attack is made separately as if you where using the Extra Attack feature. This increases to 3 weapons per attack action at 14th level.  (For the purposes of your hidden blades feature each attack is a separate contested check.)

Pin-Point Accuracy

Starting at 13th level, you learn to aim specifically for vital points on targets, this increases your thrown weapons damage die by one step (I.e. 1d4 to 1d6). Additionally when you make an attack with advantage, you deal an additional 1d4 damage of the weapons type. (Attacks that you make to trigger your sneak attack feature do not gain this extra d4 of damage.)

Ricochet Master

 At 17th level, when you miss a target with a thrown weapon you can reroll to attack the same or different target within 25ft. a single weapon can do this a number of times equal to your INT modifier. Each ricochet after the first subtracts 2 from the damage and attack rolls. The first time a weapon ricochets per turn you can make your Hidden Blades feature contested check, as enemies don't expect a missed dagger to come back and hit them.