Cirran's Forceful Decompression

You create an area of total vacuum in a 50-foot-radius sphere from a point within range. No air or gas can enter the vacuum, and any nonmagical liquid in an open container in the area immediately vaporizes and is dispersed. Any creature or object entirely inside the sphere is immune to thunder damage, and creatures are deafened while entirely inside it. Casting a spell that includes a verbal component is impossible there.

When a creature enters the spell's area for the first time on a turn or starts its turn there, that creature must make a Constitution saving throw. On a failed save, the creature takes 5d10 force damage, is incapacitated, and begins suffocating. Creatures which do not need to breathe succeed this saving throw automatically. On a successful save, the creature takes half damage and is not incapacitated.

Alternatively, any creature of elemental air or gas, such as an air elemental or a creature under the effect of the gaseous form spell, must make a Constitution saving throw immediately upon entering the area of vacuum, taking 10d10 force damage on a failed save, or half as much damage on a successful one. Regardless of whether the creature fails or succeeds, it is immediately forced away from the center of the sphere to the outside of the area, whereupon it cannot willingly reenter.