pf2e.fyi
From Pathfinder #159: All or Nothing, which isn't enabled.

Flourishing Finish

FEAT 12
ARCHETYPECONCENTRATEEMOTIONMENTAL
Activity 1 action
Archetype Provocator
Prerequisites Provocator Dedication
Requirements Your last action was a Strike that dropped an opponent to 0 Hit Points.

Attempt a Performance check, comparing the result to the Will DC of each foe within 30 feet who can see you. Regardless of the result, each target is immune to your Flourishing Finish for 10 minutes.

Critical Success The target is Frightened 2.

Success The target is frightened 1.

Pathfinder #159: All or NothingOGL