Wilting Wind

A black bolt from your pointer finger races to a point you choose within range and then swirls into a draining, supernatural gust. Each creature in a 15-foot-radius sphere centered on that point must make a Dexterity saving throw or target takes 6d6 necrotic damage on a failed save, or half as much damage on a successful one.

The gust spreads around corners. It causes organic objects in the area that aren't stowed or protected to wilt.

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.