Your weapon resonates with thunder, smiting your foe and enabling you to move enemies into locations where your allies can more easily reach them.

Daily   ✦     Arcane, Thunder, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Charisma vs. AC

Hit: 3[W] + Charisma modifier thunder damage, and you slide the target 2 squares.

Effect: Until the end of the encounter, whenever you hit a target with an at-will attack power, you slide the target 2 squares to a space that must be adjacent to at least one of your allies.

Published in Player's Handbook 2, page(s) 72.