Downburst Destruction

You stab the blade of your sword into the ground and summon a concentrated Downburst which hits every creature within 15 ft radius centered on you, and they take 8d6 force, thunder or slashing damage and must make a Dex saving throw, on a fail they take full damage and is pushed back 20ft, on a success they only take half damage and aren't pushed back.

Uncovered torches and flames are extinguished, and any object weighing 10lbs or less get flung about inthe wind.

casting at 4th level or higher increases damage by 1d6 per spell slot level