Coldeye's Caustic Coffin

Choose a target that you can see within range. The target must succeed on a Wisdom saving throw or be paralyzed for the duration. At the end of each of its turns, the target can make another Wisdom saving throw. On a success, the spell ends on the target. On a failed save the target takes 3d6 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 4rd level or higher, you may chose to target one additional creature for each slot level above 2nd. The humanoids must be within 15 feet of each other when you target them.