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Stupefying violence
rogue attack 27

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

Target: one creature

Attack: Dexterity vs. AC

Hit: "4[W] + Dexterity modifier damage, and you slide the target 2 squares."
Ruthless Ruffian: You instead slide the target a number of squares equal to 2 + your Charisma modifier.[MP:87]

Stupefying violence is an encounter power available to rogues at 27th level.