As two actions, you utter a foul incantation that causes the flesh, muscle, and bones of up to six creatures of your choice that you can touch or see within 20 meters to be ripped asunder. Each creature must make a Fortitude saving throw. If the creature is a construct, incorporeal undead, or lacks flesh and bones, the spell has no effect on it.
On a failure, it takes 10d8 poison damage and is knocked prone as its body is suddenly and violently twisted and contorted into unnatural shapes.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
If a creature is killed by this damage, its body is twisted into shredded pieces and if the creature is not undead, you regain health equal to half the amount of necrotic damage dealt.