Talk:Eggs/@comment-58.178.50.13-20120712114503/@comment-4775325-20120712115933

Because Fire and Cold are opposite elements in order to breed a Blue Fire you need to breed a basic Fire dragon with a Cold hybrid dragon (like Storm). Be aware though that opposite element hybrids like Blue Fire can be very hard to breed and unless you are lucky it may take 30 or even 50+ tries before you succeed.

To breed a Rainbow any combo with 4 or more different elements in it will give you a small chance (very small about 1%), Blue Fire + Crystal can breed a Rainbow but because if you fail it can result in Dragons with long breeding times like Crystal (24hrs) and Mountain(14hrs) most people prefer to try for Rainbow using a combo like Swamp/Seaweed + Firefly/Scorch because the longest breeding time if you fail is Swamp(9hrs) and most of the other possibilities take 3hrs or less.

Hope that helps, good luck with your breeding.