Board Thread:General Discussion/@comment-25491026-20141211215926/@comment-24577221-20141212002250

That depends on how far you've progressed in the game. Breeding an Ethereal just requires that you have a 4-element monster and a 3-element monster on the same island; you can get lucky and get the Ethereal right away. Getting and activating a Wubbox takes a lot of coins, and a bunch of monsters you don't mind getting rid of. It's quite imposssible until you've been playing the game for a while (unless you pour a fair bit of money into the game to buy coins and/or diamonds). But after you've had all of your islands filled for a month or two, and have all of your monsters really happy and at level 15, the coins start piling up. Then getting the Wubbox going is just a matter of forking out the coins, running the egg through the nursery, and marching the monsters into it... purely mechanical.