Strike of dancing shadows
rogue attack 13
Melee weapon
Requirement: wielding a light blade and be hidden.
effect: before the attack, you shift 1 square and remain hidden during the shift.
Cunning Sneak: Add your Intelligence modifier to the number of squares you shift.
Target: one creature
Attack: Dexterity vs. AC
Hit: "2[W] + Dexterity modifier damage. You shift 1 square and remain hidden during the attack and the shift."[MP2:65]
Strike of dancing shadows is an encounter power available to rogues at 13th level.