Aqua Surge

You tap into the ancient, chaotic power of the abyss, unleashing a devastating surge of water in a 30-foot radius centered on yourself. The very ground beneath you trembles with the force of the unleashed sea.

All creatures within the area must make a Dexterity saving throw. The DC for this saving throw is 15. On a failed save, a creature takes 4d8 bludgeoning damage as it is pummeled by the rushing water, and it is knocked prone. On a successful save, a creature takes half damage and is not knocked prone.