Benefit: After you take a short rest or an extended rest, any healing power you use before the start of your next encounter restores the maximum number of hit points possible.
For example, if a 6th-level cleric with Wisdom 18 and this feat uses healing word after a rest, that power allows the target to regain hit points equal to his or her healing surge value plus 16 (the maximum result of 2d6 + 4).[PH2:188]