Board Thread:Dragon City Gameplay Questions & Answers/@comment-24252564-20131205083715/@comment-5354013-20131205174211

I was having a bit of a problem with my list changing at all. But I contacted Social Point and then I cleared my Flash and  Browser cache and tried using a different browser. I changed the list 3 times and the Hydra came up. So it cost me 79 gems. But there's no guarantee; it's a game of chance.