Avasculate

A jet-black ray of necrotic energy lances from your hand toward a creature you can see within range, rupturing its blood vessels and draining its vital essence.

Make a ranged spell attack against the target. On a hit, the target takes 12d8 necrotic damage and must make a Constitution saving throw.

On a failed save, the target is stunned until the end of your next turn.

On a successful save, the target isn't stunned.

This spell has no effect on constructs, oozes, undead, or creatures that lack blood or comparable vital fluids, at the DM's discretion.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 2d8 for each slot level above 7th.