Board Thread:Dragon City Questions and Answers/@comment-36.73.52.138-20130526123203/@comment-779290-20140314113742

Aurora is a level 15 exclusive, so either both parents have to be at least level 15 or one of them has to be a legend dragon. The easiest way to breed it would be a level 15 electric and a level 15 flame. This gives four possible results, one of which is the Aurora.