Talk:Rattle Dragon/@comment-32956601-20171029004843/@comment-27957947-20171029010346

None, this dragon cannot be bred. It's the final prize in the current Dragon Tales.

From the "Availability" section, above:

The Rattle Dragon is obtainable:

By purchase at the market for 1,800 Gold20px. After completing Chapter 10 of the Toil and Bubble Dragon Tales Event. Note: You cannot acquire the Rattle Dragon through breeding.