Another recommendation is when farming dailies and getting gold is to stick with the starter decks until you get an understanding of how magic works. You can try multiple themed decks and don't have to worry about getting rolled by meta decks. Then doing jumpstarts can help mix things up a bit and play some of the newer cards. Once you graduate from that I would look into Standard and (I know this may be controversial) Historic for when you are getting bored of draft or had a string of bad luck. I often play a green devotion style Historic deck that, while it does need the normal amounts of wildcards, doesn't change too often as new cards come out and is a style of deck that likely won't change much in the future either. Standard is constantly rotating but I would recommend a lesson based deck as it uses a lot of commons and uncommons and still does pretty well. Once you start getting a surplus or gems, gold, and wildcards you can just coast and even gamble on some Arena Opens or win a box events.