Elden Sling

You draw a buckshot of sharp stones and other debris up from the earth into a 30 foot cone in front of you. Creatures in the cone need to make a DEX saving throw, taking 1D8 piercing damage on a failed save or half as much on a success. 

At Higher Levels. If you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st (to a maximum of 6d8).