You pray to your god as you attack, asking for a healing boon for yourself or an ally. Your prayer is rewarded when you strike your enemy.

Encounter   ✦     Divine, Healing, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 2[W] + Strength modifier damage, and you or an ally within 5 squares of you regains hit points equal to 15 + your Charisma modifier.

Published in Player's Handbook, page(s) 67, Class Compendium.