Depthsurge

You conjure a powerful explosion, scattering creatures affected by it. Choose a point within range. Creatures within a 10-foot radius sphere centered on that point must make a Strength saving throw. If a creature fails this saving throw, it takes 4d10 bludgeoning damage, is knocked 15 feet away from the center of this explosion, and is rendered prone. A creature that succeeds on this saving throw takes half damage and is subject to no other effects from this peril.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage done by this spell increases by 1d10 and the distance pushed increases by 5 feet, for each slot level above 4th.