Top 10 Cumulative Upkeep Cards in Magic: The Gathering HubPages I never fully understood Cumulative Upkeep as a teenager. It was just a single cost we paid each turn to keep cards on the battlefield. In fact, we would often set aside Magic The Gathering Trading Card Game Mystery Booster The List Single Card Uncommon Sheltering Ancient 121 Foil ToyWiz Cumulative Upkeep that has "Upside"? Probably overpowered but wanted to dabble in making something that gives you too much of a good thing : r custommagic