Talk:Game Updates/@comment-76.18.81.192-20130412141253/@comment-60.240.68.239-20130412180617

The egg grid is a representation of the dragon's elements, not their parents' elements. Otherwise, you could fill the whole grid with Rainbow eggs.

It's not out of the question that we get Water/Fire and Fire/Water hybrids, breedable in a way similar to opposite hybrids (that is, you need a third element in the mix). To get a Malachite or Ironwood dragon, you can't just breed basic Plant and Metal because that's impossible... for a Fire+Water hybrid, breeding basic Fire and Water would be possible but it would only ever produce an Air dragon.