You point at a medium sized course or larger you can see in range of you, the courpse then violently explode in a shower of blood, bone, and flesh.
Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 7d6 necrotic damage, and is knocked prone on a failed save, or half as much damage on a successful one.
Once a corpse explodes it my not be selected agin as a valid target for this spell.
At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 and the radius of the blast by 5ft, for each slot level above 3rd. When when using a 5th level spell slot, one additional corpse in range my also be selected to explode as well. When when using a 7th level spell slot, three additional corpses in range my also be selected to explode as well. When when using a 9th level spell slot, five additional corpses in range my also be selected to explode as well. The same corpses my not be selected multiple times.
* - ((A human finger, charcoal, and a pinch of sulfur))