Board Thread:General Discussion/@comment-24452966-20140729200338/@comment-24482752-20140729200831

The Blue Peacock dragon was a reward for a Spin the Wheel event and was not breedable.

The Penumbra dragon was released today to all the platforms and is breedable. To breed it, you must combine blue and purple.

However, they did include a Panda dragon in the battle tournament once, though it has not been obtainable in the game to date.

I hope that clears up some of the confusion! :)