Earthen Spike

A jagged shard of rock erupts from the ground, stabbing into a target within range. The target makes a Dexterity saving throw, taking 2d8 piercing damage on a failed save, and half as much damage on a successful one.
When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.