Thunderous Wave

3rd-level evocation

Casting Time: 1 action
Range: 90 feet
Components: V, S
Duration: Instantaneous

You initiate a shockwave centered at a point you designate within range. The shockwave explodes outward through a 30-foot-radius sphere. This does no damage directly, but every creature the shockwave passes through must make a Strength saving throw. Those that fail are pushed 30 feet and knocked prone; if they strike a solid obstruction, they also take 5d6 bludgeoning damage. Those that succeed on the save are pushed 15 feet and are not knocked prone; they take 2d6 bludgeoning damage if they strike an obstruction. The spell also emits a thunderous boom that can be heard within 400 feet.