From Pathfinder Lost Omens Rival Academies, which isn't enabled.

All-Encompassing Hunger

FOCUS 1

UNCOMMON DEATH FOCUS MANIPULATE VOID WIZARD

Cast

Range 30 feet

Targets 1 living creature

Defense basic Fortitude

You reach out to devour a life, regardless of whether you need it for sustenance. The target takes 1d6 void damage, with a basic Fortitude save. If the creature is reduced to 0 Hit Points, it dies, and you gain temporary Hit Points equal to the damage dealt. These temporary Hit Points last for 1 minute.

Heightened (+1) The damage increases by 1d6.

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