Your tactical intuition places your ally just where he or she needs to be.

Encounter   ✦     Augmentable, Psionic
Immediate Interrupt      Close burst 3

Trigger: An enemy within 2 squares of you makes a melee attack

Target: One ally in the burst

Effect: The target can use a free action to shift 1 square and make a melee basic attack against the triggering enemy. That attack deals 1d8 extra damage to the enemy.

Augment 2

  Target: One or two allies in the burst or you and one ally in the burst

  Effect: Each target can use a free action to shift 2 squares and make a basic attack against the triggering enemy.

Published in Player's Handbook 3, page(s) 41.