Startle (Skill)
You can make an Intimidate check rather than a Bluff check to feint in combat (see Feint on page 42). Targets resist with Intimidate, Sense Motive, or Will (whichever is best) and gain a +1 bonus on their resistance check per startle attempt against them in the same encounter.
MMFeats
WWFeats
MeMaFeats
FFFeats