Warlord Attack 1Commander’s Strike

With a shout, you command an ally to attack.

At-Will        Martial, Weapon
Standard Action      Melee weapon

Target: One creature

Effect: One of your allies can take a free action to make a melee basic attack against the target. The ally gains a bonus to the damage roll equal to your Intelligence modifier.

Published in Player's Handbook, page(s) 145, Class Compendium.