Board Thread:Dragon City Mobile/@comment-13641045-20140219172518/@comment-24161372-20140220202312

@Aflmax - As long as you spend your hammers and break a brick and reset your hammers back to zero, then yes, you will fight Viking again after Firebird. But if you don't spend all your hammers and keep all three of them, then your next fight would be Zombie. I haven't seen anyone map out all 12 dragons if you decide to not spend any hammers until you've collected all 12. It looks like Joseph may have, but he didn't list out the 12 different dragons he encountered before his crash.