Shadow Linked

you have gained some sort of link to your shadow, and are able to move and manipulate it.

Shadow Scout

When you choose this archetype at 3rd level, you gain the ability to manipulate your shadow.

In addition, your shadow is able to grasp on to items starting at 5 lbs., but increasing to 10 at level 8, 15 at level 13, 20 at level 18, etc. and can move up to  30ft at 3rd level, 60 at 6th level, 90 at 9th level,  and 120 at 12th level. you also have advantage on a Dexterity (Stealth) check by using your shadow to scout for hiding spots

Shadow Attack

By 9th level, you are able to not only control your shadow, but lock on to the shadow of others, if your shadow connects to that of another, you are able to attack said shadow as a bonus action. dealing 2d4 psychic damage at 9th level, 2d8 at 14th level, and 2d12 at 19th level

One with your shadow

by 17th level, you have become one with your shadow and are able to enter your shadow at will. If an enemy were to hit you with an attack, you can roll a dex saving throw against their attack roll,  a pass means you enter your shadow and avoid taking damage, you can then exit the shadow as part of the same reaction. 

Shadow master

at 17th level, you are able to make others shadows your own, when you attach yourself to an enemy's shadow, as an action, you can then make them roll a contested wisdom saving throw. failure resulting in their shadow turning against them and restraining them. they take 1d4 psychic damage at the start and end of their turn until they pass a DC 19 wis saving throw. This ability can only be used once per short rest.