Treacherous Shadow

You cause the shadow of a creature that you can see to momentarily turn against it. The target creature's shadow transforms into a monstrous apparition, and strikes out at it with its claws using your spell attack modifier. On a hit, the target takes 2d8 of necrotic damage, and the target's Strength score is reduced by 1d4. The target dies if this reduces its Strength to 0. Otherwise, the reduction lasts until the target finishes a short or long rest.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the the shadow apparition becomes more monstrous, and the necrotic damage increases by 1d8 for each slot level above 1st. The Strength score reduction roll does not stack.