pf2e.fyi
From Pathfinder #156: The Apocalypse Prophet, which isn't enabled.

Devour Life

SPELL 8
Traditions divine, occult
Cast
Range 30 feet
Targets 1 living creature
Defense basic Fortitude

You attempt to utterly consume the target's life force. The target takes 60 void damage with a basic Fortitude save. If this damage reduces the target to 0 Hit Points, it dies immediately. You regain Hit Points equal to half the void damage the target takes (after applying resistance and the like). Any excess healing is gained as temporary Hit Points, which you lose after 1 minute.

Pathfinder #156: The Apocalypse ProphetOGL