Talk:Battle Arena/@comment-99.105.42.10-20130613002808/@comment-4830404-20130613174004

Your lv7 Diamond is still one of the "best" chances, you just have to persist until the RNG goes your way.

Check the Battle Arena Calculator above to see if you own any higher probability dragons, but a high level Diamond is consistently good if you don't have a super rare, high level dragon to exploit weaknesses.