The magic within you manifests as a natural reaction to threats.
Gnome
Illusion
Visual
Feat type
Ancestry Feat
Level
13
Traits
Gnome, Illusion, Visual
Prerequisites
at least one arcane or occult innate spell gained from a gnome heritage or gnome ancestry feat
Frequency
once per hour
Trigger
You are attacked by a foe, but they haven't rolled yet.
Actions
Reaction
The magic within you manifests as a natural reaction to threats. An illusory double of you appears in your space for a brief moment. The triggering attacker must roll a DC 10 flat check; on a success, the attack targets you normally; if they fail, the attack targets the double and destroys it. The tradition of this action matches the tradition of your gnome ancestry options.
Source: Pathfinder Player Core, p. 53
Bring Instinctive Obfuscation into a Pathfinder 2e game with The DM Screen.