Azure Cryostasis

Choose a humanoid that you can see within range. The target must succeed on a Constitution saving throw or be paralyzed for the duration. during the duration the target is unable to be harmed. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional humanoid for each slot level above 3rd. The humanoids must be within 30 feet of each other when you target them.