Until the spell ends, you control any water inside an area you choose that is a Cube up to 100 feet on a side, using one of the following effects. As a Magic action on your later turns, you can repeat the same effect or choose a different one. Flood: You cause the water level of all standing water in the area to rise by as much as 20 feet. If you choose an area in a large body of water, you instead create a 20-foot tall wave that travels from one side of the area to the other and then crashes. Part Water: You part water in the area and create a trench. The trench extends across the spell's area, and the separated water forms a wall to either side. Redirect Flow: You cause flowing water in the area to move in a direction you choose, even if the water has to flow over obstacles, up walls, or in other unlikely directions. Whirlpool: You cause a whirlpool to form in the center of the area. Any creature in the water and within 25 feet of the whirlpool is pulled 10 feet toward it. When a creature enters the whirlpool for the first time on a turn or ends its turn there, it makes a Strength saving throw, taking 2d8 Bludgeoning damage on a failed save or half as much on a successful one.