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PFS StandardKnow the EnemyFocus 4

Source Core Rulebook pg. 393 2.0
Domain knowledge
Cast ReactionReaction somatic; Trigger You roll initiative and can see a creature, you succeed at an attack roll against a creature, or a creature fails a saving throw against one of your spells.
Use a Recall Knowledge action, rolling the appropriate skill check to identify the triggering creature's abilities. You can roll your check twice and use the better result.