mtg amonkhet split cards Doing the Aftermath counter that spell if it has the same converted mana cost as the revealed card. The 46 Best Split Cards

You know the judge in the suit is actually Magic designer Mark Rosewater

Alternatively, we can try and harness the decks considerable token generation ability to try and help cast them: either by convoking with Wand of the Worldsoul, or powering them out with an attack from Epistolary Librarian

Tapping down 5 lands for 5 turns in a row to win with a Colonnade is a fairly common route to victory for conrtol decks already and that is a lot of turns without access to that much mana where things can go pear shaped for you

It gains protection from everything until your next turn

The art is excellent, however, and Ghostly Prison is a $5 card, so itd be a great pick in any case