Most played cards in Black Control:

1 Decks
Snow-Covered Swamp
6 copies - 6 average
Cabal Therapy
4 copies - 4 average
Wasteland
4 copies - 4 average
Nether Spirit
4 copies - 4 average
Zombie Infestation
4 copies - 4 average
Contamination
4 copies - 4 average
Rishadan Port
4 copies - 4 average
Mishra's Factory
4 copies - 4 average
Duress
4 copies - 4 average
Phyrexian Furnace
3 copies - 3 average
Null Rod
3 copies - 3 average
Dystopia
3 copies - 3 average
Perish
3 copies - 3 average
Engineered Plague
3 copies - 3 average
Innocent Blood
3 copies - 3 average
Powder Keg
3 copies - 3 average
Skeletal Scrying
2 copies - 2 average
Contagion
2 copies - 2 average
Tainted Pact
2 copies - 2 average
Sickening Dreams
2 copies - 2 average