Board Thread:Off Topic/@comment-24993958-20150311232923/@comment-25396609-20150609004930

paladin class skill 'lay on hands' from DnD.

"Lay on Hands
Beginning at 2nd level, a paladin with a Charisma score of 12 or higher can heal wounds (their own or those of others) by touch. Each day they can heal a total number of hit points of damage equal to their paladin level × their Charisma bonus. A paladin may choose to divide their healing among multiple recipients, and they don’t have to use it all at once. Using lay on hands is a standard action"

replace charisma with whatever stat determines aura effectiveness and level with their aura volume. allows for an increase in effectiveness over time without being disproportinately powerful.