Breeding dragon is one of most exciting and frustrating part of dragon city. It is base on luck especially at high level where you are aiming for those hard to get dragons like Poo Dragons. There are 4 types of dragons in terms of breeding in dragon city, the normal, rare, legendary and pure. There are also 8 basic elements of dragon which is shown in the picture below.
Each basic element is represented by a single element dragon which can be bought using gold. Since they are single element, they cannot be breed and can only be bought.
The Normal Dragons:
Normal dragons are those dragons that can be breed using two basic element dragons. These are the dragons that are easiest to obtain. For example you want Neon Dragon (Electric and Dark), you just need to breed Electric and Dark dragon. Sometimes, breeding two basic dragons won’t give you the dragon you are aiming for since most of the basic combination offers multiple dragon as a result. For example if you breed Water and Fire dragon. The result would be either Cloud or Blizzard Dragon.
That is the basic formula for breeding the normal dragons. Best strategy here is to make a checklist of all those dragons including its element and breeding time so that you can easily manage your playing time in accordance to the breeding time. Mark those dragons you obtain and delete those duplicate dragons to save space. I personally delete dragon if I run out of space. I still keep the duplicate dragon to increase the gold production until I run out of space.
You can breed any basic element dragon to another basic element except the one directly opposite to it as shown in the picture above. For example you cannot breed Fire with Ice or Metal with Earth. These dragons that have two elements which is directly opposite to each other belongs to another types known as the rare dragons.
The Rare Dragons:
These are the dragons that have two elements directly opposite to each other. They are much harder to breed since they cannot be breed by using basic element dragon. The only way to obtain this dragon is by breeding dual elemental dragon with a basic dragon or with two dual elemental dragons. For example you want a Cool Fire Dragon (Fire + Ice), you can breed Medieval (Fire – Metal) with Ice Dragon. Other combination would be Medieval and Alpine (Ice – Earth). There are a lot of combinations possibly, and no one knows which the best is since luck plays a significant role here. These dragons are really good in the stadium and league fight so I recommend having these dragons early. You can buy them using gems or you can use dragon city hack to get them.
The Legendary Dragons:
This type of dragon is one of the most wanted since they are really good in gold production. This dragon has a high gold production and their habitat can hold a large amount of gold so this doesn’t require a lot of clicking. They are much harder to obtain but the combination for its breeding is really easy. All these legendary dragons share a common rule which is breeding Rare dragon with another Rare dragon. The most used combination is using Cool Fire with another Cool Fire because they have the shortest breeding time of all the rare dragon combination. You can of course use another rare dragon combo since it is based on luck. You can also buy those legendary dragon using gems or by using dragon city cheat. Legendary dragons are also stronger than those rare dragons so if you get them, level them up and use them in stadium and league fights.
The Pure Dragon:
These are the next generation dragon and only obtain at high level. It is divided into two types, the Pure and the Pure Elemental. Pure Dragon can be obtained by breeding two legendary dragons. You need tons of luck to acquire this dragon. The breeding time and hatching time is also insane so having upgraded hatchery and breeding tree is an obvious advantage when you are shooting for this dragon. Pure Elemental dragons are obtained by breeding Pure with a single element dragon or with hybrid dragon. For example you want Pure Dark dragon, you can use Pure and Dark dragon combination, or you can use Pure and Neon (Electric and Dark) which can also give you Pure Electric dragon. Luck is also big factor here since breeding Pure and Pure Elemental can give you any dragon.
Pure dragon is by far the best dragon for stadium and league fight. Having 3 Pure Dragon, fully upgraded with its strongest attack and having gold ranks will give you 100% of winning.
Dragon City Breeding Guide 