You can buy an ice dragon in the market for 250 gems. If you do not want to spend money, you can breed one for free.
The most effective way of breeding an ice dragon is a cold dragon (lv 10 left) and a water dragon (level 10 right). This has about a 68% success rate.
The egg is light blue with medium blue waves. It takes 8 hours to hatch.
You don't breed a Kairos Dragon in DragonVale. You have to get parts to complete it.
you breed a ice dragon with a mine dragon
You have to breed a plant and a fire dragon.
As of July 2012, there has not been a star dragon in DragonVale.
You have to breed a metal and a water dragon together.
You have to breed a sun and moon dragon together
You have to breed a plasma dragon with a salamander dragon.
Breed the earth dragon with the fire dragon.
To get a Smoke Dragon, breed a fire and air dragon together.
There is no "marsh" dragon in dragonvale but if you are referring to the moss dragon the best way to get it is earth and plant, although you also have a chance to breed the tree dragon.
Breed a Crystal dragon with a Cactus dragon.
Another dragon