Belrah's Resonant Policy

You touch a creature and transfer vibrations into the target. For the next day after the casting, you can snap your fingers to end the vibrations. The target must make a Constitution saving throw let the vibrations loose in a shockwave, dealing 10d8 thunder damage in a 10ft. sphere. On a successful save, the target takes half damage and does not create a shockwave.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the thunder damage increases by 1d8 for each slot level above 7th.