Brainwatch
Explorer
Since we’re posting variants, here’s my take that tries to keep the spirit of the original while upping the possible total damage.
Power Word Kill
9th-level enchantment
Casting Time: 1 action
Range: 60 feet
Components: V
Duration: 1 minute
You utter a word of power that can compel one creature you can see within range to die. The targeted creature takes 100 HP of damage instantly, no save or resistance apply. This damage cannot be healed for the duration of the spell.
Additionally, for the next 10 rounds the targeted creature must make a Con save vs Caster spell DC or take an additional 10 HP of damage. A successful save negates damage for that round only,
Power Word Kill
9th-level enchantment
Casting Time: 1 action
Range: 60 feet
Components: V
Duration: 1 minute
You utter a word of power that can compel one creature you can see within range to die. The targeted creature takes 100 HP of damage instantly, no save or resistance apply. This damage cannot be healed for the duration of the spell.
Additionally, for the next 10 rounds the targeted creature must make a Con save vs Caster spell DC or take an additional 10 HP of damage. A successful save negates damage for that round only,