Tendrils of Corruption

The shadows around the target rise and start attacking as well as engulfing the target in darkness, blinding their sight.

The creature must make a Constitution saving throw against your spell save DC or take 6d8 necrotic damage and be blinded on a failed save or half as much on a successful one. This spell has no effect if the area around the target is magically illuminated.

At Higher Levels:  When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.