Syntax: Automatic
This passive ability allows thieves to react to unseen danger before they
would normally be able to do so. Consequently, if a thief of sufficient
level is attacked by an unseen foe, invisible or hidden, they will react
instinctively. If they do so successfully, the thief retains his or her
dexterity bonus even if caught off guard (flat-footed).
* This ability is gained automatically upon reaching the requisite level