Those who taught you were masters of assassination and entertainment. They taught you how to swiftly deal with your enemies from the shadows but also how to dazzle your enemies if need be.

Drop from the Shadows

At 3rd level, when you choose this archetype, you gain expertise in Stealth. If you already have this expertise, you may choose another skill you are proficient in to gain expertise. When wearing a piece of hooded clothing, you gain +2 to Stealth checks, and gain advantage on Deception and Stealth checks to blend into a crowd. A crowd is considered to be a group of at least 3 figures.

You were also taught an advanced form of parkour granting you a climbing speed equal to your movement speed, and now avoid taking fall damage up to 20ft. In addition, if you make a successful attack at the bottom of your fall, damage increases by 1d6 per 10ft, and you take no fall damage. On a failed attack, take normal fall damage per 10ft after the initial 20ft.

Assassinate

Starting at 3rd level, you are at your deadliest when you get the drop on your enemies. You have advantage on attack rolls against any creature that hasn’t taken a turn in the combat yet. In addition, any hit you score against a creature that is surprised is a critical hit.

Parting "Gift"

At 9th level, once on each of your turns, immediately after you move out of a creature's reach, you can make a ranged weapon attack with a thrown weapon targeting that creature.

Your speed also increases by 10ft.

Dazzling Performance

By 13th level, your feats of acrobatics leave your enemies captivated by your performance. When you make an acrobatics skill check creatures within 30ft of you must make a charisma saving throw with a DC equal 8 + to your Acrobatics modifier or be incapacitated until the end of their next turn. Your allies are immune to this effect, having seen you do this a million times.

Double Assassinate

At 17th level, you have become more effective with the use of your weapons. Once per turn, when you take the Attack action, you may make two attacks as part of the same action. 

The bonus to your Stealth checks gained from hooded clothing is increased to +4.