Deflected strike
rogue attack 27
Requirement: wielding a light blade.
Trigger: An enemy misses you with a melee attack, and a different enemy is adjacent to you
Target: the attacking enemy
Attack: Dexterity vs. Will
Hit: "The attack hits an enemy adjacent to you other than the target. You can add your Sneak Attack damage to the attack's damage, even if you have already used your Sneak Attack during this round."
Cunning Sneak: Both enemies grant combat advantage to you until the end of your next turn.[MP2:70]
Deflected strike is an encounter power available to rogues at 27th level.