pf2e.fyi
From Pathfinder #216: The Acropolis Pyre, which isn't enabled.

Death Tusk Helm

ITEM 3
UNCOMMONINVESTEDMAGICAL
Price 55 gp
Usage worn headwear
Bulk L

Slivers of boar tusk are sewn into this leather cap, creating a scaled helmet that channels dozens of boars' ferocity into the wearer.

Activate—Boar's Last Stand (auditory, concentrate)
Frequency once per day
Trigger Your turn begins
Requirements You have a doomed or wounded value of 1 or higher
Effect You unleash a fearsome roar. 1 creature of your choice within 30 feet must attempt a DC 16 Will save or become Frightened 1 (Frightened 2 on a critical failure). Increase this DC by the sum of your Doomed and Wounded values (maximum DC 20). You then gain 5 temporary Hit Points that last 1 minute.
Pathfinder #216: The Acropolis PyreORC