User blog comment:Kingpalace/Rare Hybrids/@comment-5893553-20121225183004

Be patient and take Vulcano Dragon with Alpine Dragon. That is how it worked for me and I got it after 2 tryes. If you Really Really want it right now, then you have to use a rare boost but that is just a bad idea because you will just waste gems. As said above, be patient. This is really the best combo I know.