Animate Shadow

You bring to life the shadow of a creature you can see within range. The target must make a Wisdom saving throw against your spell save DC. On a failed save, their shadow animates into a malevolent attacker.

For the spell's duration, the shadow stays attached to the target, sharing it's space and constantly assailing the target, granting advantage on all attacks against it. In addition, the shadow deals 1d6 necrotic damage at the beginning of each of the target's turns. At the end of each turn, the target can attempt a Wisdom saving throw to dispel the shadow and end the effect.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 1.