Originally Posted by
NeoSeraphi
Traditionally, feats that require a minimum ability score require at least a 13 in said ability score (Power Attack, Combat Reflexes, Dodge, Combat Expertise, etc).
The feat itself looks nice, a good way to reward clever rogues, swashbucklers and fighters. More actions is always nice, though I don't know how much use a non-caster will get out of extra swift actions. However, warblades will pile on this feat eagerly, as they should. Crusaders and swordsages less so, but still to a certain degree.