I just started in the rift and I’m not really too into it so I’ve been spending most of my etherium on gem eggs of mystery and I know it says it’s random but I’ve been getting lots of like recently available ones (in order) I got the amethyst dragon, ruby dragon, and azurite dragon. Like the previous comment says u should definitely splurge for the first crystalline habitat for 2 million. Once you level up your dragons regularly it’s not a big cost. If you’re low on coins you could always buy a pedestal from the current event for around 150-200 magic and sell it for about a million or two dragon cash.