Earth Spikes

You raise your hands, calling upon the elemental forces of the earth to respond to your command. Tremors beneath the ground intensify, and suddenly, sharp spikes of solid rock erupt from the earth in a 50-foot radius centered on a point you choose within range.

Effect: All creatures in the area must make a Dexterity saving throw. On a failed save, a creature takes 8d6 piercing damage and is restrained for the duration. On a successful save, a creature takes half damage and isn't restrained.

A creature restrained by the spikes can use its action to make a Strength check against your spell save DC. On a success, the creature frees itself from the spikes.

The area becomes difficult terrain, and any creature that enters the area or starts its turn there must also make a Dexterity saving throw, taking damage and potentially becoming restrained as described above.

At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for each slot level above 5th.