Diamond Spray

A cone of tiny, sparkling slivers as hard and sharp as fled diamonds springs from your outstretched fingers at tremendous speed. Each creature in a 20-foot cone must make a Dexterity saving throw. A creature takes 8d6 piercing damage on a failed save, or half as much damage on a successful one.

The spray pierces through cover, negating any cover bonus a creature would gain to their Dexterity saving throw, unless the object is immune to piercing damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.