idea to make epic wublins easier to obtain

so obviously epic wublins would be a huge pain to fill. What if having the rare wublin in its upgradable state made it so all the epic eggs it required to be available and maybe easier to breed, with the downside only having the option to zap them or trash them, not place them down on your island? Sort of like a locked version of the egg, this way it's not as difficult to obtain the eggs but also doesn't let you get any epic monster whenever. Just something I thought of while going to sleep.