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Feinting flurry
rogue attack 19

Requirement: wielding a crossbow, a light blade, or a sling.

Target: one creature

Attack: Dexterity vs. Will

Hit: "5[W] + Dexterity modifier damage."

Effect: until the end of your next turn, all of the target’s defenses against your attacks take a penalty equal to your Charisma modifier.
Sustain Minor: Sustain the penalty for another round.[PH:124]

Feinting flurry is a daily power available to rogues at 19th level.