You target a creature you can see. The target is engulfed in black smoke-like shadow and becomes completely obscured. In this darkness claws from creatures of unspeakable horror slash at the target. The target must make a Dexterity saving throw taking 3d10 magical slashing damage if it fails or half this on success. After this the shadows and claws all disappear.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.