I know that we are dealing with Mono-element decks from the standpoint of the rule we made up in that ever-so-wonderful thread *shudders*... but I still don't like the definition, because if I am using two or more different types of quanta during a match fairly evenly, it doesn't feel mono at all. It's obvious that the Firefly Queen card is very heavy on life quanta. So much to the point where the deck usually uses MORE life quanta than air quanta. If you run a pure air deck, Firefly Queen is a bad card. The same is true for a Water/Death Nymph deck. The deck's core strategy revolves around a death card. But it's mono water, because all the casting costs are of the Water element. I know it's "easy" to use such a simple definition, but I personally don't think it's any easier at all, because of decks like this that blur the line so much that it doesn't exist at all.