Most played cards in Zombie Spark:

1 Decks
Buried Alive
4 copies - 4 average
Zombie Infestation
4 copies - 4 average
Duress
4 copies - 4 average
Cabal Therapy
4 copies - 4 average
Withered Wretch
4 copies - 4 average
Red Elemental Blast
4 copies - 4 average
Death Spark
4 copies - 4 average
Wasteland
4 copies - 4 average
Ashen Ghoul
4 copies - 4 average
Krovikan Horror
4 copies - 4 average
Squee, Goblin Nabob
4 copies - 4 average
Sulfurous Springs
3 copies - 3 average
Diabolic Edict
2 copies - 2 average
Contagion
2 copies - 2 average
Bloodstained Mire
2 copies - 2 average
Dread of Night
2 copies - 2 average
Tainted Peak
2 copies - 2 average
Undead Gladiator
2 copies - 2 average
Nether Shadow
2 copies - 2 average
Funeral Charm
1 copies - 1 average