"Your attack binds energy within your foe's form. The magic reacts with concussive force each time you or an ally strikes the creature." (EPG 49)
Encounter Attack Power
Tags: 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."