Torrent

---Based on the ability from Dota 2---

Summons a torrent of water that surges from the ground in a 5-foot radius circle centered on a point within range. Each creature in the circle must make a Dexterity saving throw. A creature takes 6d8 bludgeoning damage on a failed save, and Large or smaller creatures are hurled 20ft. into the air and knocked prone. On a successful save, the creature takes half as much damage and isn't thrown into the air or knocked prone.