I haven't played for a few years, and I was wondering about the expansions.

Is there, a buy one get all pack. Or do I have to buy, for example The Primalist Calling Pack, Ascended Soul, and whatever else there is, or does the Rift essentials cover it?

I'm trying to recruit my friends into coming back as well, but they're really put off by the number of expansions that they will have to get in order to advance. I'm just trying to get any answers I can for them.

Thanks in advance