Entropify

You bind the bodies of strong or magical creatures to mundane elements, weakening their forms. Choose 2 damage types from the following: bludgeoning, piercing, slashing, acid, cold, fire, lightning, necrotic, poison, radiant, and thunder. All creatures within a 10 feet of a point you can see within range must make a Charisma saving throw. On a failure, they become vulnerable to those damage types. If they have a resistance to one of the damage types, they instead lose their resistance. If they have immunity to one of the damage types, they instead become resistant.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you may choose one additional damage type for each level above 2nd.