pf2e.fyi
From Pathfinder Lost Omens Divine Mysteries, which isn't enabled.

Guiding Words

FEAT 18
Activity 1 action
Archetype Mortal Herald
Prerequisites Mortal Herald Dedication; master in Diplomacy

Frequency once per 10 minutes

Your words speak divine truth, guiding blades and arrows to their mark. Choose an ally within 30 feet and attempt a Diplomacy check. The DC is equal to the hard difficulty DC of the level of your ally. On a success, the first time the targeted ally makes an attack roll before the end of their next turn, they roll the attack twice and use the better result.

Effect: Guiding Words

Regardless of the result, the target becomes immune to Guiding Words for 10 minutes.

Pathfinder Lost Omens Divine MysteriesORC