mtg kozilek commander deck Kozilek, Butcher of Truth | Rise of the Eldrazi Foil | Modern Target player scries X Kozilek, Butcher of Truth Commander

Blue-Black is clearly about commiting crimes and these are just some of the payoffs

Because these cards arent at an especially high power level I expect the regular Magic Online offerings to eschew the mechanic entirely, and if you do want to incorporate dungeons into one of your Cubes I recommend going heavy on the mechanic so that players have good odds of actually completing one

If youre trying to do something engine-y like Jeskai Ascendancy, your opponent is going to have answers due to Force of Vigor

In fact, its pretty easy (I wonder if I ever say differently about a card): If you are about to pay for a spell less than 3 mana, you get to pay 3 mana