In order to get a rainbow dragon you will need to create a rainbow egg. To do this, you must mix 100 gold ingot + 100 pearls + 15 dragon scales using Portal to the Dragon's Dwelling. This egg/plant will make 1000 coins, 10 experince, and one of these animals: Foxie, Minstrel, Heavenly Tiger, Royal Polecat, Parrot, Happy Jenny-Penguin, and Rainbow Dragon. I suggest you use Google search engine in order to find additional information, guides and tutorials.
