Augment Healing( Complete Divine, p. 79)
Your Conjuration [Healing] spells are more effective.
Heal 4 ranks,
Add +2 points per spell level to the amount of damage healed by any Conjuration [Healing] spell that you cast. For example, a 1st-level cleric with this feat casting cure light wounds would restore 1d8+3 hp. An 8th-level cleric with the Healing domain and this feat casting cure moderate wounds would restore 2d8+13 hp (9 for his caster level including the +1 caster level bonus for the Healing domain, + 4 for the feat). A 13th-level druid casting heal would restore 144 hp (130 for her caster level + 14 for the feat, since heal is a 7th-level druid spell).