Board Thread:Dragon Story Breeding/@comment-25510538-20141025144708/@comment-5927117-20141130070115

You can use any 4 color combination/type you want. Except Heart that doesn't count as a type. The other one you shouldn't use is Wizard. Mega already gave the explanation above. If you get a Diamond using Wizard it will be a pure Diamond 50% of the time but the other 50% it will be an Infinity. Infinity is not as bad as it used to be. Since a few months you can breed with it. So you could use it to get the other Diamond hybrids but NOT a pure Diamond. If you get a Diamond on the other hand it is very easy to get Infinity. In short Diamond is hard enough to get as it is. Don't risk your chance on an easy Infinity.

The only thing that really counts is how often can you try and how often you can try depends on how long your dragons need to breed on average. A simplified example. If you breed Water and Fire your going to get mostly 20h Magics and a few Rare 11h Tropics and Athletics. But on average it will take you over 18 every time you put them together. Another extreme is Fire and Fire. The only offspring is Fire which takes 10s. In short you need to use a 4 color combo with a low fail time. Best I've found is Scarecrow and Mythic (less than 9h fail time).