ComponentsV, S, M (the powder of a crushed black, pearl worth 500+ GP)
DurationInstantaneous
Negative energy ripples out in a 60-foot-radius Sphere from a point you choose within range. Each creature in that area makes a Constitution saving throw, taking 8d8 Necrotic damage on a failed save or half as much damage on a successful one.
At Higher Levels
The damage increases by 2d8 for each spell slot level above 6.