In the battle, there are three slots and you choose three dragons to fight other three dragons. You can win multiple resources and rewards. For example, Terra Habitat is for dragons with terra element. Play PvP battles and challenge other dragon trailers from other regions to fight with your dragons. The habitats of dragons are based on their elements. It is where you choose two dragons to mate in order to have a hybrid element offspring. The first breeding place is the Breeding Mountain. This building is used to wait for the eggs to hatch. The hatchery is a building with nests for the eggs. The dragons in the shop cost gems, except the ones with one element, because you use dragons with one element to breed in order to make hybrid ones without buying them in the shop. The elements are Terra, Flame, Sea, Nature, Electric, Ice, Metal, Dark, Light, War, Pure, Legend, Primal, and Wind. Once they grew from baby to juvenile, you can use them to breed in order to have a hybrid dragon that has two elements. In the game, there are up to 14 element types, and dragons come with up to 4 elements that they can learn moves from.
You buy another starter dragon with one element and make them grow by feeding. You had a starter dragon with one element.