Been gone awhile ..

So haven't played since i think the third set dropped. Life just happened but found a card shop near me that carry product and does events(according to their website) and I'm ready to jump back in!!

Any particular sets i should buy?? I see they got they are have dropped up to BT19 and EX 6 i think? And resurgence something or other.

Was pretty much a red or blue player and was putting together a green deck, but I like going big and hard, any suggestions I should look into or just follow the flow of what I rip?

So yeah conclusion, 1. what sets would be good to buy 2. Is going big and hitting hard still viable 3. Saw something about "Aces" what are those and i left just before or as DNA digievolution dropped. Are these needed? 4. Oh and are my older cards still good to build with or is there a rotation I'm collection just dead?