An amorphous dark cloud shoots from your pointing finger to a point you choose within range which then explodes with a loud boom into a deafening peal of thunder. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 6d6 thunder damage on a failed save, or half as much damage on a successful one.

The sound echoes around corners, but does half damage (quarter on a successful saving throw). A creature made of inorganic material such as stone, crystal, or metal has disadvantage on their saving throw. Additionally, each creature inside the sphere must succeed on a Strength saving throw or be knocked prone. The sound produced by this spell can be heard 300ft away.

Usage of this spell consumes one sorcery point

At Higher Levels. A side-effect of spell transmutation is that spells cannot be cast at higher levels