How to see Unreleased content in Dragon city ?

[Dev]

I am very curious that how various people get unreleased dragons in dragon city (Like Archangel,Deep Red......etc.).I also want to know how to do that.I am asking because of curiosity only and i have no intentions for hacking.In fact i don't even like Hackers.So,please if anyone trusts my words they can tell me the trick,if not then its ok....................i understand.
Thank you in advance(either you tell me or not)

[Regina]

The Archangel can only be borrowed for some kind of event. You can't obtain it. If you know anyone that has it, its a fake one that was hacked.

Btw if you want free dragon city gems, go to http://free-dragon-city-gems.tk/ and follow the instructions given. (This isn't a hack XD)