You take on a watchful bearing, lending your allies your battle acumen, allowing their wilder strikes to hit home more often.

Daily   ✦     Martial, Stance
Minor Action      Personal

Effect: Until the stance ends, when an ally within 5 squares of you misses with an attack, you can take an immediate interrupt to allow the ally to reroll the attack roll with a bonus equal to your Intelligence modifier.

Published in Martial Power, page(s) 115.