You accept a critical hit in an attempt to make one of your own.
Benefit: You leave yourself wide open and helpless, provoking an attack of opportunity that automatically hits and automatically confirms a critical hit. If your opponent takes advantage of this opening, you may make a single attack that automatically threatens a critical hit if successful. Your opponent realizes you are using this feat if he makes a successful Sense Motive check (DC 10 + your Bluff modifier). If successful, your opponent may choose to take a regular attack of opportunity.