Your attack binds energy within your foe's form. The magic reacts with concussive force each time you or an ally strikes the creature.

Encounter   ✦     Arcane, Force, Weapon
Standard Action      Melee or Ranged weapon

Target: One creature

Attack: Intelligence vs. Fortitude

Hit: 1[W] + Intelligence modifier + Constitution modifier force damage.

Effect: Until the end of your next turn, whenever any ally hits the target with a melee attack, that ally pushes the target 1 square.

Published in Eberron Player's Guide, page(s) 49.