Install. Log on. Make a deck and join a game or jump into a draft. There's two Dominaria drafts filling up right now. There's no rules engine and it's a bit janky at first, but you can play magic against a real human 24/7 for free.
Also, the cockatrice drafting community relies on opensource apps like http://dr4ft.info to run the actual drafts. There's always room for improvement and anyone can host a fork. It'd be great to get more HNers tinkering with them.
Is this basically the modern version of Apprentice? I spent a lot of time during tourney prep on Apprentice, it helped me figure out deck concepts really quickly and let me know what cards i needed to buy(as well as strategies to counter the most popular decks in the format). Apprentice was super basic, but the P2P gameplay really felt futuristic even on dial-up.
What/where can I find this? never heard of it and never had much fun/luck with magic online but would love to be able to play online