pf2e.fyi
From Pathfinder Lost Omens Impossible Lands, which isn't enabled.

Carrion Cask

ITEM 8
UNCOMMONMAGICAL
Price 500 gp
Bulk L

This stylized, palm-sized box contains a black, ooze-like substance that can easily devour a corpse in moments, breaking the body down into a necromantic sludge.

Activate Interact
Frequency once per day
Effect You feed a corpse of a Small-sized or larger creature to the cask, little by little. The activation requires a three-action activity for a Small or Medium creature, a 1-minute activity for a Larger creature, and a 10-minute activity for a Huge creature. A Gargantuan creature is too large for the cask to devour.
Activate command, envision
Frequency once per day
Requirements The carrion cask has consumed a corpse since the last time it was activated
Effect You release the sludge from the carrion cask's last meal in a pulse of necromantic energy. Creatures in a 30-foot cone take 6d6 void damage, with a DC 24 basic Fortitude.
Pathfinder Lost Omens Impossible LandsOGL