Animate shadow

You create an illusion which animate the shadow of a creature not larger than Medium you can see within range. The target makes an Intelligence saving throw. On a successful save, the spell ends on the target.

On a failed save, the target's shadow animates into a malevolent attacker. For the duration, the target is occupied by the illusion and become incapacitated. Additionally, attackers have advantage on attack rolls against the target for the duration.

At the beginning of each of its turn or every time it takes damage, the target can make another Intelligence saving throw.

A creature at 5 ft of the target may take an action to try to end the illusion. The target makes another Intelligence saving throw. On a failed save, the target makes a melee attack against the helper.

At higher level: When you cast this spell using a spell slot of 4th level or higher, you can cast this spell on an additional creature for each spell slot level above 3rd.