Cloak of the Shadowcaster

Shadows writhe underneath this cloak. While attuned to and wearing this incredibly dark cloak, you have advantage on Dexterity (Stealth) checks made to hide in dim light or darkness . 

In addition, you can use an action to animate your shadow for up to 1 hour. While animated, you can see and hear through your shadow’s senses and control it telepathically. If your shadow is slain while animated, your shadow disappears until the new moon, during which time the cloak becomes nonmagical. Once you have used this property, you cannot do so again until the next dawn.