You conjure a powerful explosion of water, scattering creatures affectecl 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 knockecl 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 spell.