Mastered Finger of Death

9th-level necromancy

Casting Time: 1 action

1 action Range: 90 feet

90 feet Components: V, S

V, S Duration: Instantaneous

You send negative energy coursing through a creature that you can see within range, causing it excruciating pain. The target must make a Constitution saving throw. It takes 16d8+60 necrotic damage on a failed save, or half as much damage on a successful one.

If this spell reduces a humanoid to 0 HP, it rises at the start of your next turn as any undead creature that's below CR 2 that is permanently under your Command, following your verbal orders to the best of its ability.