Responding to your expertise, one ally steps in to cover another's recovery.

Encounter   ✦     Martial
Free Action      Close burst 5

Trigger: You or an ally within 5 squares of you uses second wind

Target: One ally in the burst other than the triggering character

Effect: The target can shift 1 square as a free action. In addition, an enemy in the burst is marked by the target until the end of the enemy's next turn.

Published in Martial Power, page(s) 105.