Esteldir's Portable Void

You create a vacuum at a point that you can see within range, removing all air, gas or liquid from a 10-foot-radius, 30-foot-high cylinder centered on that point. Any fog, smoke, or vapour are removed, and non-magical flames are snuffed out. Until the spell ends, you can use your bonus action to move the vacuum up to 30 feet in any direction along the ground. The vacuum sucks up any Tiny or Small objects that aren’t secured to anything and that aren’t worn or carried, which rise to the top of the cylinder and fall to the ground immediately.

A creature inside the cylinder is deafened and unable to make sound of any kind while it remains there. Casting spells with verbal components within it is impossible. Any ranged weapon attacks going in or out are made at disadvantage. Any creature which requires gas or liquid to breathe immediately begins to suffocate on entering the cylinder until they leave it.

When the spell ends, any creatures within the cylinder must make a Constitution saving throw, and take 4d8 thunder damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the area increases by 10ft radius, and the damage increases by 1d8 for each slot level above 3rd.