Shadeborn Cloak

This shadowy cloak is woven from the darkness of the Shadowfell. While wearing the Shadeborn Cloak, you gain advantage on Stealth checks and can cast the spell Invisibility once per long rest without expending a spell slot. Additionally, whenever you are hit by a melee attack, the attacker takes 1d6 necrotic damage as the cloak retaliates with shades of darkness. This damage increases to 2d6 if the attacker is undead.