I thought dragons would be more fun to pay the quantum for if they could lay an egg. I thought it'd be fairest for dragons to only be able to lay 1 egg. Once the ability is used it is gone. Cost 3 of the dragon's element to lay the egg. 4 to hatch it. When it hatches it turns into a Drake with half the attack/hp of its mother. It'd be best to give the 'Drakes' an element cost half that of the dragon, in case of reverse times and fractals.
If decided fair, Perhaps the Devonian/Silurian dragons could lay fate eggs, or perhaps the Purple/Amethyst dragon instead, being that fate eggs turn into random creatures which is what entropy is about..
If this idea is accepted, I think that the purple dragon should lay a purple drake egg, but the amethyst dragon lays an elite fate egg.. The Devonian dragon could lay a fate egg, and the Silurian dragon could lay a Silurian drake egg. There could be some fun play with this, all eggs would have somewhere between 0/1 - 0/3, whichever would be decided fair.
I figured.. you gave the spiders the 'web', maybe the dragons could be cooler for every element with a 'Lay egg' ability. I would definitely use Dragons more if this could work. I think the balance would work quite well. Except for those who like to use their dragons for luciferin(bioluminessence).