You call forth a spout of water from the ground or from the air, directing it toward a location within range. It expands outwards into a 10-foot radius, 40-foot high cylinder.   When a creature, other than you, enters the area for the first time on a turn or starts its turn there, it must make a Dexterity saving throw. On a failed save, the creature takes 3d6 bludgeoning damage, and is pushed 10 feet away from the spout. On a successful save, the creature takes half as much damage, but suffers no other effect.   As a bonus action while you are within 5 feet of the spout, you can ascend it and ride it as if it were a mount, moving you and the spout up to 40 feet horizontally. The spout can carry you and up to 500 pounds of weight.