Blood Freeze

You have hyper-frozen your opponent's blood! Choose an opponent that you can see within range. Target takes 2d4 cold damage and 2d4 piercing damage. The target must succeed on a Constitution saving throw or be paralyzed. At the end of each of its turns, the target can make another Constitution saving throw. On a success, the spell ends on the target. On a fail the target takes 1d4 cold damage and is still paralyzed. 

The damage increases by 1d4 per level above 2nd. When you cast this spell using a spell slot of 3rd level or higher, you can target one additional creature for each slot level above 2nd. The targets must be within 30 feet of each other when you target them.