Nothing, because there is no such thing as a leaf dragon.
a spikey cold dragon
Reported results of cold + obsidian are:ObsidianLavaMountainFrostfireRainbowGlacierGhostAirScorchCoralPaperFlowerBlue Dragon
You will get blue fire, or a storm.FireflyScorchSun or MoonStorm
Cold and fire dragons can not actually be bred directly together. You would have to use other combinations of dragons that contain these elements.
This combination creates mountain, moss, and tree dragons. During the Christmas holidays, it can also create a reindeer dragon.
An evergreen (plant/cold), lichen (cold/plant), tree (plant/earth), moss (earth/plant), or mountain (cold/earth) could result from that combo.
Cold and lava in the epic breeding island
Then you get a mountain dragon. He is cute when he is a baby but gets as big as an earth dragon, he almost looks like a earth dragon but has snow on his back it look cool! Hope this information helps!
It costs 20,000 dragoncash. You can buy it in the eggs section of the dragon market. You could also get a cold dragon by breeding two already existing cold dragons together.
There are 3 basic, and main ones. If you play DragonVale then you probably know them. They are Earth, Plant and Fire. There are also other main dragons as well! Lightning, Water, Air and Cold are the other main dragons.
You will most likely get a Firefly or Scorch. It depends on what dragon is left and what dragon is right. Lightning (left) Lava (right). That = Firefly Fire (left) Lightning (right). That = Scorch
There are many combinations that will work, but my five favorites are cold and hail, cold and storm, hail and lightning, hail and storm, and lightning and storm. You have to start breeding the dragons between 7:00 p.m. and 7:00 a.m.