Ultimate Adventurer's Handbook
Wave of Agony
2-level Necromancy
Casting Time: 1 action
Range/Area: Self (15-foot cube)
Components: V, S
Duration: Instantaneous
A wave of malice rushes out from you. Each creature in a 15-foot cube originating from you must make a Constitution saving throw. On a failed save, a creature takes 3d8 necrotic damage and its speed is reduced to 0 feet until the beginning of your next turn, its muscles seizing with pain. On a successful save, the creature takes half as much damage and its speed isn’t reduced. This spell has no effect on undead and constructs.
At higher levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.