You whip up a 10-foot-radius, 30-foot-high cylinder of swirling sand centered on a point within range. The area becomes difficult terrain for the duration of the spell, and creatures are blinded while inside it. Ranged attacks that pass through the area have disadvantage.   A creature that moves within 30 feet of the cylinder for the first time on a turn or starts its turn there is pulled 10 feet toward it. To move away from the cylinder while within 30 feet of it, a creature must first succeed on a Strength saving throw.   When a creature enters the cylinder for the first time on a turn or starts its turn there, it must make a Strength saving throw. On a failed save, a target takes 4d6 bludgeoning damage and has disadvantage on its next Strength saving throw to move away. On a success, a target takes half as much damage and suffers no additional effects.