Avalanche of Fury
Ranger Attack 23
You cut wide with your two weapons, and if the strategy doesn't work, you save it for use later in the fight.
Melee Weapon
Target: One creature
Primary Attack: Strength vs. AC (main weapon)
Effect: Make a secondary attack against the target.
Secondary Attack: Strength vs. AC (off-hand weapon)
Hit: 3[W] + Strength modifier damage.
Avalanche of Fury is an encounter power available to rangers at the 23rd level.[MP2:43]