Animate Shadow

You bring to life the shadow of a creature you can see within range. The target must make a charisma saving throw. If they fail, their shadow animates into a malevolent attacker. For the spells duration the shadow stays attached to the target, sharing it's space and constantly assailing the target, granting advantage on a creatures first attack against it on their turn. In addition, the shadow deals 1d6 necrotic damage at the beginning of each of the targets turns. At the end of each turn the target can attempt a charisma save to dispel the shadow and end the effect.