I got mine with a magnetic dragon and a lichen dragon and got it while trying to get another apocalypse dragon.
There is a blue fire dragon, and there is an ice dragon. So far, there is no blue ice dragon. See the related questions for how to breed the other two.
The blue fire dragon becomes available at player level 9.
Cold and lava in the epic breeding island
cold level 4 fire level 4
It takes 12 hours to breed a blue fire dragon. :) I still need to learn how to breed this though. Hope this helped.
Breed mine( cold and metal) with cold and you may get it Add me on game centre : blue zebra world
there are a lot of ways, but the most effective way is blazing (air and fire) and water
Fire Dragon and Lichen Dragon
Yes you can. Any two dragons breeding that have fire and lightning might breed a fire fly. But if you breed a lightning and fire together you will most likely get a firefly, but scorch dragons are bred the same an take 3 hours also to incubate so you might get a scorch, not a firefly
Blue fire
Hybrid dragons in Dragonvale are combinations of different elements, e.g. Plant and Earth = Moss. Moss is a hybrid dragon. There is no official dragon in Dragonvale called the Hybrid Dragon. Try breeding a Lightning Dragon with a Cold Dragon. You will get a Storm Dragon, and that is a hybrid.
The most effective method of breeding a summer dragon is using a water dragon and scorch dragon. This has a 16% success rate. The egg is yellow with a blue caterpillar design, and takes 24 hours to hatch.