How to breed Poo dragon

Here are some Combos:


Petroleum+Mud (Not a high chance)
Pirate+Earth (Not a high chance)
Any legendary+Petroleum/Pirate/Mud/Earth (Higher chance than the other Combos)

How to get Pure dragons

To breed normal pure dragon, breed and 2 legendarys. You should have about a 30-40% chance of getting the normal pure dragons.


Crystal+Crystal
Crystal+Legendary
Crystal+Mirror
Crystal+Wind
Legendary+Legendary
Legendary+Mirror
Legendary+Wind
Mirror+Mirror
Mirror+Wind
Wind+Wind


For Element Pure dragons breed pure dragon + the element


Pure+Earth=Pure Earth Not 100% chance
Pure+Fire=Pure Fire Not 100% chance
Pure+Water=Pure Water Not 100% chance
Pure+Plant=Pure Plant Not 100% chance


Other Pure dragons aren't out yet but most likely they will come out.

Legendary Dragons

Any 2 rare dragons can be bred to have a small chance of getting a legendary. 
Rare dragons include:
Armadillo dragon, cool fire dragon, soccer dragon, gummy dragon, petroleum dragon and pirate dragon.


A very good combo to breed a legendary with is cool fire and cool fire.
This can get the following:
Legendary, cool fire or soccer
This means that there is a good chance with legendary and also a very low breeding time.
It only takes 4 hours to breed together!
Any other 2 rares will usually take 12 hours to breed.

How to breed cool fire, soccer, gummy and armadillo

Cool fire:
Combo 1: Medieval and alpine (very good)
Combo 2: Medieval and platinum
Combo 3: Cool fire and cool fire (best)

Gummy:
Combo 1: Firebird and fluorescent 
Combo 2: Laser and dandelion
Combo 3: Neon and nenufar (best)

Soccer:
Combo 1: Medieval and alpine (very good can get 2 other rares)
Combo 2: Cool fire and ice
Combo 3: Cool fire and cool fire (best)

Armadillo
Combo 1: Medieval and alpine

How to breed medieval, alpine, firebird, platinum, florescent, laser and dandelion

Medieval:
Combo: Fire and metal

Alpine:
Combo: Earth and ice

Firebird:
Combo: Fire and plant

Platinum: 
Combo: Metal and ice

Florescent:
Combo: Electric and ice

Laser:
Combo: Electric and fire

Dandelion: 
Combo: Plant and ice 


Neon:
Electric and dark


Nenufar:
Plant and water

Dragon breeding

Lets take Medieval + Alpine combo as an example. It is a very popular combo.
Here we have 4 different elements

Fire=A 
Metal=B
Earth=C
Ice=D

AC Fire +Earth = Flaming rock

AD Fire + ice = Soccer

BC Metal+Earth = Armadillo

BD Metal + Ice = Pearl dragon

CA Earth +fire = Vulcano dragon

CB Earth +Metal = N/A

DA Ice + fire = Cool fire dragon

DB Ice +Metal = Platinum dragon


The combo can give all of these dragons.

Here is a breeding guide on the Dragon City forums

http://forums.socialpointgames.com/showthread.php?35267-Breeding-Guide