Board Thread:Dragon City Gameplay Questions & Answers/@comment-24724301-20140323070348

Does anyone know the purpose of the 3 star rating system for dragons? I do realize that in one way it is related to their level. However I have some dragons over level 25 with no stars and some with stars at level 15. Are the stars supposed to indicate their effectiveness in combat? I have some dragons with no stars that do very well in combat while some with stars are easily defeated so I'm puzzled about the meaning/purpose of the rating. Two of my grandchildren are playing Dragon City as we'll and are asking me which dragons are best for combat. 