pf2e.fyi
From Pathfinder Lost Omens Hellfire Dispatches, which isn't enabled.

Infernal Interference

FEAT 16
ARCHETYPEFLOURISH
Activity 2 actions
Archetype Hellknight
Prerequisites Hellknight Preferment
Requirements You're wielding your order's favored weapon.

Your attacks force a foe to glimpse the iron, soul-wrenching landscapes of Hell. Strike an enemy with the required weapon twice. If either Strike hits, the target is Stupefied 1 and can't use reactions until the beginning of your next turn. If both Strikes hit, the target is Stupefied 3 instead.

Pathfinder Lost Omens Hellfire DispatchesORC