pf2e.fyi
From Pathfinder Adventure: Prey for Death, which isn't enabled.

Blood-Drinker

ITEM 18
Price 24000 gp
Usage held in 1 hand
Bulk L
Category advanced
Group sword
Damage 1d6 slashing

This +3 greater striking keen sawtooth saber has a black blade that always seems freshly smeared with blood.


Activate—Drink Blood (concentrate)
Trigger You reduce a creature to 0 Hit Points with the weapon
Effect You gain a number of temporary Hit Points equal to twice the creature's level. If you're also wielding Fleshrender in your other hand, you instead gain temporary Hit Points equal to three times the creature's level. These Hit Points remain for 1 minute.

Activate—Wall of Sabers (concentrate, manipulate)
Frequency once per hour
Requirements Fleshrender is within 30 feet and isn't currently held by you
Effect A whirling wall of sawtooth sabers appear in the air between the paired weapons. All creatures in a line between you and Fleshrender take 10d6 slashing damage and 4d6 bleed damage (DC 38 basic Reflex save).
Pathfinder Adventure: Prey for DeathORC