Board Thread:Light and War Update/@comment-5418178-20130803133821/@comment-24323757-20140519092758

Let me explain:

Sea+Dark+Terra can't be done but you could use Mud+Wildcard to complete. Since LAW, Pure Dragon is no longer a wildcard and only the Legendaries. So you'll need a legendary to make a Poo.

And do not throw the poo away, these may be rare!