There's the official version that just costs for the account, but they give you that amount back in credit. Otherwise there's Apprentice and Magic Workstation. Most people use Magic Workstation since it has more features than Apprentice. Both of them require rules knowledge just like playing the paper version.
Originally Posted by Zephy
/sticks to Soldier deck
Right now I'm playing Jund Aggro and I love that matchup. I main board Black Knights and side board Chaotic Backlash. Not to mention Maelstrom Pulse in the MB takes care of multiple Honor of the Pure.