Jade Egg

What hatches from a Jade Egg!?

I web searched Jade Egg, but found little information ... so now it is a really big surprise. There are still about 10 hours to go until I find out. I'm trying to keep busy so that I don't keep obsessing about what is in that JADE EGG!

Rowan hatched her Forest Lord with her Night Hawk (from the gift card). Both of them have spritely. Forest Lord has a pedigree of 59, Night Hawk's is also 59, and Jade Egg is only 57, with no card, so I am assuming that it is not another Forest Lord.
Jade Egg was given the name of Lady Brady (oh, why did it have to rhyme?). She has 3 Uncommon and 7 Rare slots and no card.

Still waiting ... tick, tick, tick ...