Quartz Burst

3rd-level conjuration

Casting Time: 1 action
Range: 150 feet
Components: V, S, M (a tiny chip of quartz)
Duration: Instantaneous

A glowing crystal flies from your outstretched palm to a point you choose within range and then explodes as a shower of deadly crystal flakes. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 magical slashing damage on a failed save, or half as much damage on a successful one. After discharging, the crystal debris quickly fades to nothingness.

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.