Board Thread:Quests and Special Events/@comment-71.217.192.114-20130620164943/@comment-9946604-20130625190234

Demon performs better than mosts rares, and not quite as good as legends.

Mind you, a leveled up rare with 3 gold stars can take out a legend of much higher level because opponent dragons never have stars. Also, since legends are only weak vs legend, demon has the advantage of being able to score criticals against numerous opponents.

Therefore, while there are stronger dragons, it is by no means weak.