How to Breed the Rainbow Dragon on DragonVale. Rainbow Dragons are one of the rarest kinds of dragons in Dragonvale. The chance of breeding one is very low, but there are tons of possible combinations. If you're extra lucky, you may get a Double Rainbow Dragon, easily the rarest Dragon in the game. read more
The Rainbow Dragon can be bred using any two dragons, in either order, that contain at least four different elements at the Breeding Cave/Epic Breeding Island. Coin per minute: The Rainbow Dragon can be bred using any two dragons, in either order, that contain at least four different elements at the Breeding Cave/Epic Breeding Island. read more