Your familiar has learned even more from your stealth and tricks in combat.
Benefit: Your familiar gains an additional +2 bonus to Stealth checks. In addition, when you make an impromptu sneak attack, the next time your familiar attacks the target, the target loses its Dexterity bonus to AC against your familiar’s attack. This benefit only applies if the familiar attacks the target within a number of rounds equal to your level in arcane trickster.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.