by admin » Wed Dec 25, 2013 3:31 am
26% chance per run on the hardest level, assuming average of 6 mixed chests per run, not per golden chests. If you got 15 golden chest from hardest level only got 1 dragon, then you still have very bad luck as roughly 1 in 4 golden chests from hardest level are dragons.
We probably will not extend the Holy Dragon event duration.