I got it with level 10 willow, left(willow is made by air and plant) and level 10 quake(quake is made by lightning and soil) Check to see if you got it by looking at the incubation time. It should say 35 hours.
If you breed any type of dragon as long as they are lv 10 you will get them
You don't breed a Kairos Dragon in DragonVale. You have to get parts to complete it.
There is a Bronze Olympus Dragon on sale right now on DragonVale if you were talking about the Bronze Olympus Dragon. If you were just talking about a Bronze Dragon then I don't know.
You breed the Willow Dragon and the Quake Dragon on the Epic Breeding Island. You also have a chance of getting a silver or bronze dragon when you breed, but you will just have to keep at it! It helps when your dragons are level 10.
you breed a ice dragon with a mine dragon
Blazing and Crystal
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.