Eldritch Cascade

You unleash a blast of Energy in a area you can see. Each creature in a 70-foot Cylinder originating from the point of creation makes a Constitution saving throw, taking 9d8 Force damage on a failed save or half as much damage on a successful one. All liquids within range of the spell are frozen, 

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 6.