The code varies between 9 different codes each run. There's no real way to set a deck up unless you guess. My best advice is to set up a deck with tc enchanted versions of every pip cost (not spellemented as those can't be created into tc enhanced versions). This is to keep it ready to go when you're ready to break the fortify. I'd keep strong 6-9 pip spells for the minions. for example, I had tc enchanted vampires ready to use in case 4 was part of the code to break the fortify. I also had regular tc Dr. Von in case 9 was part of the code.