Dry Ice Bomb (HB)

You cannot cast this spell underwater or in a place with no atmosphere. You compress air and freeze it on a point within range before it thaws in a rapid expansion. Each creature within a 20-foot radius of the center must then make a Constitution saving throw or take 3d6 bludgeoning damage and 3d6 thunder damage. On a successful save, the creature takes half as much damage. Each creature 5 feet away from the sphere must make a Strength saving throw or be pulled 5 ft towards the center as it before it explodes.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the bludgeoning or thunder damage increases by 1d6 for each slot level above 4th. The distance the targets are pulled and affected increase by 5ft for each spell slot level above 4th. For example, if you use a spell slot of 5th level each creature within 30 feet of the center that fails the Strength saving throw gets pulled 10 feet into the center. The radius for the damage is not increased.