Daring Outlaw

 
Prerequisite(s): Grace +1, sneak attack +2d6
 
Benefit: Your rogue and swashbuckler levels stack for the purpose of determining your competence bonus on reflex saves from the grace class feature and the swashbuckler's dodge bonus to AC. Your rogue and swashbuckler levels also stack for the purpose of determining sneak attack damage.
 
Source: Complete Scoundrel