I'm just getting back into MTG after having quit right around the time Ice Age came out. I think I was done by the time 5th edition was released. Anyway... Holy shit is there a lot of new stuff. I'm actually pretty enthusiastic about the new things, though what I had heard turned me off to going back to Magic a few years ago. Now I'm guessing sliver decks were beyond popular at some point(s), but I'd still like to make one eventually. For now, my main deck idea is a thallid deck. I know they were around back in Empires or whatever that series was, but I'm looking at the new thallids and new cards like "Tromp the Domains" and other such "mass bonus" cards which seem to work extremely well together. My question is, what series should I be buying if I want to make a thallid deck like that? All I've purchased since coming back is a Timeshift starter pack.