You sweep your blades in mighty arcs around you, cutting foes that get too close and thrusting them back.

Encounter   ✦     Martial, Weapon
Standard Action      Close burst 1

Requirement: You must be wielding two melee weapons.

Target: Each enemy in the burst you can see

Attack: Strength vs. AC

Hit: 1[W] + Strength modifier damage, and you push the target 1 square.

Published in Player's Handbook, page(s) 115.