You have a wall of tough, pliable, tangled brush bristling with needle-sharp thorns sprout into existence at a point you can see within range. The wall appears within range on a solid surface and lasts for the duration. You choose to make the wall up to 60 feet long, 10 feet high, and 5 feet thick or a circle that has a 20-foot diameter and is up to 20 feet high and 5 feet thick. The wall blocks line of sight. When the wall appears, each creature within its area must make a Dexterity saving throw. On a failed save, a creature takes 8d8 piercing damage, or half as much damage on a successful save. A creature can move through the wall, albeit slowly and painfully. For every 1 foot a creature moves through the wall, it must spend 4 feet of movement. Furthermore, the first time a creature enters the wall on a turn or ends its turn there, the creature must make a Dexterity saving throw. It takes 8d8 slashing damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, both instances of damage increase by 1d8 and one parameter of the wall increases by 5ft (its thickness, height or length/diameter) for each slot level above 6th.