Health is overrated. At least in the case of rush decks (I'd classify most decks as rush decks, since most people aim to end a game in 9 turns or less), when people look at creatures, they look at damage per quanta spent. It's no biggie if someone kills your creature, because you'll just play more of them.
Every colored dragon has an attack of 10 or less, save for
, which is themed around high attack fragile health creatures, so it has a 12/3 dragon. Every colored dragon has health of 5 or more, save for
. When I hear the term "basic" dragon and see an uncolored dragon, I imagine that to be what its name implies. A plain dragon with stats unaffected by the theme of any of the elements. Something like 10/5 for 10 quanta, and 11/6 for 12 when upgraded. Boring, I know.
Thing is, you're already getting an advantage out of this card because you can play it in any deck, using any element. It would essentially replace existing dragons in many/most cases. Hardly anybody would care that it has 4 health instead of 5 if they're getting an extra point of damage (or two for some elements) each turn for the same cost as a colored dragon (the exception being
, which costs 13 because it's invincible).
There ought to be some kind of tradeoff for the huge advantage of being able to stick this in any deck. It shouldn't have more preferable stats on top of that. Maybe, because this dragon isn't affiliated with any of the elements, it's not airborne like the others? It takes element-juice to fly?