Green has some pretty nutty card draw engines which will greatly improve any EDH or Commander deck
Speaking of the return-from-the-graveyard ability, like casting Compelling Argument, this isn't something that happens often
More to the point, Auriok Champion and cards with similar protection are the cards I really think buff a deck in a way thats hard to tangibly track
Black is one of the most popular colors in Commander, and as long as one player is running it, theres a good chance youll get some card draw here
So no matter what color you prefer to play, theres probably a good Magecraft card youll want to open this weekend when youre doing sealed events
It will be free-to-play, but you'll be able to put money in to buy booster packs in-game