Twister

You summon a roughly cylindrical area of buffeting winds that is 20-foot and radius, and raises 75-feet tall. The cylinder spreads around corners. The area remains for the spells duration and is difficult terrain, even for floating or flying creatures. You can use your bonus action on your turn to move the area up to 10 feet.

When the area appears, each creature in it must make a Strength saving throw. A creature take 2d8 piercing damage, 2d8 force damage and is knocked prone on a failed save, or half as much damage on a successful one and is not knocked prone. A creature in the air has disadvantage on this save. A creature must also make this saving throw when it enters the spell's area for the first time on a turn or ends its turn there.