Bone Spikes

You cause a myriad of spikes formed from bone to erupt out of the ground. When you cast this spell, choose from the following options for the shape of area this spell affects.

• Line. An 80-foot-long, 10-foot-wide line erupts from you. Creatures that fail their save are knocked prone.
• Circle. A 15-foot-radius circle erupts around you. Creatures that fail their save are restrained until the end of your next turn.

Each creature in the line or circle makes a Dexterity saving throw, taking 5d8 piercing damage on a failed save or half as much on a successful one. For the duration, the spikes turn the ground into difficult terrain for all creatures except you.

At Higher Levels. The damage increases by 1d8 for each spell slot level above 3rd.