Destructive Resonance

You snap your fingers and cause powerful soundwaves to reverberate through the body of a creature within range. The creature must make a Constitution saving throw. A creature made of inorganic material such as stone, crystal, or metal has disadvantage on all saving throws it makes against this spell. On a failed save, it takes 4d10 thunder damage and the soundwaves continue to reverberate through the creature's body. On a successful save, a creature takes half damage and the spell ends.

If the soundwaves are still reverberating through the creature’s body at the beginning of the next turn, the creature must make another Constitution saving throw. On a failed save, it takes 4d8 thunder damage and the soundwaves once again continue to reverberate through the creature's body. On a successful save, a creature takes half damage and the spell ends.

If the soundwaves are still reverberating through the creature's body at the beginning of its third turn, it must make another Constitution saving throw. On a failed save, it takes 4d6 thunder damage and the spell ends. On a successful save, a creature takes half damage and the spell ends.

A creature reduced to 0 hit points by this spell is killed and violently torn apart, as the vibrations shatter its body.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage a creature takes each turn increases by one damage die for each slot level above 5th.