Off-Hand Diversion
Ranger Attack 13
Your quick off-hand strike leaves your foe open to attacks.
Melee weapon
Requirement: You must be wielding two melee weapons
Target: One creature
Attack: Strength vs. AC (off-hand weapon)
Hit: 1[W] + Strength modifier damage (off-hand weapon), and the target grants combat advantage to you and your allies until the start of your next turn.
Off-Hand Diversion is an encounter power available to rangers at the 13th level.[MP:51]