Board Thread:Dragon Story Breeding/@comment-16144416-20140122190833/@comment-4830404-20140122191655

The Spell Shop allows you to craft expired dragons if you have the materials and the recipe is there. Sometimes they leave in the recipe for a while after expiring a dragon. Not sure why they did it for Amethyst, however, since the materials are readily available (unlike things like Samurai and Leviathan, which are controlled by the expired pieces).