"Healing Power is a secondary attribute that improves all healing performed by the character, including healing from skills, traits, the regeneration boon, and certain other effects."Total healing = source-specific base healing + Healing Power * source-specific scaling factor "Healing is a gameplay mechanic for replenishing the health of a character or NPC.""Healing scales linearly with healing power depending on the source. For example, each point of Healing Power adds 0.125 healing towards Regeneration." This is why some runes have Healing and others Healing Power, with Healing obviously being more direct.