Board Thread:Dragon City Breeding Questions/@comment-5615640-20130409052512/@comment-1187731-20130409173807

If you breed Dark Dragon and Pirate Dragon, you have:

1- Dark (from Dark Dragon) + Dark (from Pirate) = Dark Dragon

2- Dark (from Dark Dragon) + Sea (from Pirate) = Pirate Dragon or Petroleum Dragon

But you'll never get a Rare by breed with a basic element, that why you have 100% to get Dark Dragon. There is noway you can get Sea with that combine.

Similar, if you breed Sea Dragon and Pirate Dragon, 100% you get Sea Dragon.

In the Chrismat Tree event, we used to breed Armadillo with Terra (result 100% Terra), or Soccer/Cool Fire with Flame (result 100% Flame) so we can get the Item very quick (about 5 hours to get 20 Dragon Nog), so we pretty sure you can't get Rare by a Hybrid+Basic, but you still can get Rare by breed Legend/Pure with Basic.