From Pathfinder #206: Bring the House Down, which isn't enabled.

Retribution

ITEM 21

UNIQUE AGILE ARTIFACT BACKSTABBER DEADLY-D8 DIVINE FINESSE

Usage held in 1 hand

Bulk L

Category martial

Group knife

Damage 1d4 slashing

Retribution is a +3 greater striking keen shifting wounding war razor.

Activate—Vengeful Slice (manipulate)

Frequency once per round

Effect You make a Strike with Retribution against a target within 120 feet that you can see and who damaged you within the last minute, as if they were within reach.

Pathfinder #206: Bring the House DownORC