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.