Theres a special slot to put the commander, and once you choose it, MTG Arena only allows you to put cards with the correct commanders color identity
Its a fixed version of Ghost Quarter and Field of Ruin for our format
Let me know if you don't see a
Also speaking of the back of the card, the card back almost changed with the release of the very first expansion, Arabian Nights
Building this commander is a nice exercise because youll want to mill opponents, cast low-mana value spells to be able to double spell a lot, along with casting some high-cost spells
You get an unblockable creature, a catch-all for cards entering graveyards, and the ability to sacrifice it to play a card belonging to an opponent that was exiled with a void counter on it