Type: General, Fighter
Source: Player's Handbook II
You excel at picking apart an opponent's defenses when your allies also threaten him.
Prerequisite: Combat Reflexes.
Benefit: You gain a +4 bonus on your attack rolls when flanking.
Special: A fighter can select Vexing Flanker as one of his fighter bonus feats.
Normal: Flanking grants a +2 bonus on attack rolls.