You utter a minor defensive prayer to protect a comrade as you attack with your weapon.

At-Will   ✦     Divine, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 1[W] + Strength modifier damage, and you and one ally adjacent to you gains a +1 power bonus to AC until the end of your next turn.
    Level 21: 2[W] + Strength modifier damage.

Published in Player's Handbook, page(s) 63, Class Compendium.