Board Thread:Questions and Answers/@comment-24392826-20140107140622/@comment-8374954-20140107145911

blessing dragons are the best cards to use for enhancing. they give the biggest boost in the process. you can get them through weekly quests and they are given out in several events. there is a small benefit to using fully enhanced cards to feed higher cards. but i think it's extremely small and not worth the time, effort, and dorri to do it.