pf2e.fyi
From Pathfinder #208: Hoof, Cinder, and Storm, which isn't enabled.

Shadefield Knife

ITEM 9
Price 650 gp
Usage held in 1 hand
Bulk L
Category simple
Group knife
Damage 1d4 piercing

This +1 striking dagger made of black stone is carved from the bloodstained earth of the Shadefields and carries the grudge of the Shoanti who perished on that battlefield.

Activate—Vengeful Blood (concentrate, emotion, fear, mental, visual)
Frequency once per hour

Effect Blood seeps out of the knife, coating your hand. Enemies within 30 feet who can see this must succeed at a DC 26 Will save or become Frightened 1 (frightened 1 and Doomed 1 on a critical failure). The knife continues to bleed for 1 minute or until you make a successful Strike with it, which deals an additional 1d6 persistent bleed damage.
Pathfinder #208: Hoof, Cinder, and StormORC